Internet safety:

My 1st Advice will be to Keep your system clean and not allowing coockies . Use Proxy

Follow these steps :

How to Surf the Web Anonymously with Proxies

One of the easiest ways to hide your computer, and thus hide yourself, online is to use proxies. Proxies act as a filter between you and the rest of the Web. You can, for instance, connect to the Web through a proxy in Japan even though you're in the United States. Surfing the web anonymously isn't as hard or as intimidating as it looks. Once you find yourself a suitable proxy number, all you have to is click a few buttons and punch your number in to start surfing with your proxy.

Method 1 of 6: Setting Up a Proxy in Mozilla Firefox

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   Open Mozilla Firefox.
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   Click the Firefox option on the upper-left corner.
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   Click on the Options menu, and choose Options.
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   Access Connection Settings. Click the Advanced tab, then the Network tab, then Settings.
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   Chose the manual proxy configuration option. In the HTTP proxy field, enter your proxy server IP address. In the port field, enter your port number.
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   Click OK to finish.

Method 2 of 6: Setting Up a Proxy in Microsoft Internet Explorer

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   Open Internet Explorer.
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   Click on the Tools menu in the upper-right corner, and select Internet Options.
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   Click the Connections tab.
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   Click the LAN Settings button in the lower portion of the window.
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   Check "Use a proxy server for your LAN," then enter your proxy IP address and port number.
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   Click OK.

Method 3 of 6: Setting Up a Proxy in Google Chrome

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   Open Google Chrome.
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   Click on the wrench in the upper-right corner.
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   Select Settings.
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   Click "Show advanced settings..." at the bottom of the screen.
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   Click the "Change proxy settings..." button.
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   Click LAN Settings near the bottom of the window.
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   Check "Use a proxy server for your LAN," and enter your proxy IP address and port number.
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   Click OK.
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   Click OK again in the Internet Options window.

Method 4 of 6: Setting Up a Proxy in Safari in Windows

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   Open Safari.
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   Open the Settings menu. You can find this either by clicking Safari -> Preferences, or clicking the gear in the upper-right corner of the browser and selecting Preferences.
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   Click the Advanced tab.
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   Click the Change Settings button.
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   Click the LAN Settings button. You should be in the Connections tab.
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   Check "Use a proxy server for your LAN," and enter your proxy IP address and port number.
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   Click OK.
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   Click OK again in the Internet Options window.

Method 5 of 6: Setting Up a Proxy in Safari on Mac

1. 
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   Open Safari.
2. 
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   Open the Settings menu. You can find this either by clicking Safari -> Preferences, or clicking the gear in the upper-right corner of the browser and selecting Preferences.
3. 
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   Click the Advanced tab.
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   Click the Change Settings button.
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   Check Automatic Proxy Configuration.
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   Enter the URL of the proxy configuration file in the text box at right.
7. 
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   Uncheck Use Passive FTP Mode.
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   Click OK.

1. 
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   Look for web-based proxies online. While the selection of online proxies is constantly changing, a quick search online should help you to find a good currently available option.
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   Open the given proxy service in your browser. You don’t need to use proxy settings in your browser.
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   Enter the URL you want to visit anonymously. The web-based proxy should have a clear interface for doing this. When you enter and confirm your desired URL, it should allow you to browse that site anonymously.

Or Use Browser Extensions :

The Best Browser Extensions that Protect Your Privacy

There are a ton of browser extensions that promise to protect your privacy, which leads to some natural questions: Which is the best? Do they all do the same thing? What should I really download? In this guide, we're going to look at the most popular browser extensions that promise to protect your privacy online, and give you our recommendations.

We've talked about why you should care about your privacy several times here, so whether you choose to do something to protect yourself is up to you—we're not going to rehash it. Instead, we're going to dive into the tools available to keep your data safe. Most of them fall into three groups: add-ons that prevent third parties from tracking your movements, add-ons that block ads and scripts, and passive security tools that enforce good habits. Don’t worry, though. You don't need to download a ton of apps to keep yourself safe and your data close to pocket. Here are the best in each group.

Block Ads, Scripts, and Popups with AdBlock Plus

Ad and script blockers give you control over your browsing experience. They can block ads on the sites you visit and kill third-party scripts and widgets that send your data to who knows where. However, with great power comes great responsibility: If you don't know how to use them, these tools can break the sites you read, rendering them unusable until you figure out what to allow and what to block. Plus, blocking ads can has a very real impact on the site and the people who work on it (like us here at Lifehacker). Even so, it puts the power into your hands to decide which sites are worth supporting and which are just too annoying to use without an ad-blocker.

AdBlock Plus (Firefox/Chrome) blocks banner ads, pop-up ads, rollover ads, and more. It stops you from visiting known malware-hosting domains, and also disables third-party tracking cookies and scripts. We think it has the right combination of ease-of-use, on-and-off toggling, and hands-off management that makes it a tool that anyone can pick up and use. Power users can get their hands dirty with different subscription lists and tweaking the active lists they use, but basic users can enable it and walk away.

The Alternatives:

In our opinion, Adblock Plus is all you need, but there are a few other extensions that do the same thing. Here are your other options:

• NoScript (Firefox) and ScriptSafe (Chrome, formerly ScriptNo): Both disable all scripts from running on pages without you specifically adding them to an allow list. This includes Java, JavaScript, Flash, and others. They're powerful, but they're also really aggressive, and will break an awful lot of sites. If you use them, you have to be up to the task of digging through scripts on every new site you visit to figure out which ones will make the site even work properly. Plus, AdBlock Plus already does this (and is less aggressive), you just have to add the right filters.
• FlashBlock for Firefox and for Chrome: Specifically blocks Flash until you load it, including web video, advertisements, and other annoying site elements. FlashBlock is well regarded and in use by a lot of people, but all it does is handle flash. It's a good install on the side if you want to, for example, stop YouTube videos from auto-playing. If you're looking to block ads though, AdBlock Plus is more useful and flexible.
• Better Pop Up Blocker (Chrome): Vastly improves on Chrome's native pop-up blocking by stopping pop-unders and new-tab popups generated by javascript and other on-action scripts that Chrome would normally allow through. If you're already using AdBlock Plus and don't have a problem with ads, you don't need this, but if you're running into sneaky pop-ups that make it through your defenses anyway, give it a try.

Stop Everyone from Tracking You with Disconnect

Anti-tracking and anti-cookie extensions have exploded recently. We covered a number of them when we discussed how you can stop companies from tracking your movements on the web. Since then, the market has only grown, with more extensions and apps that all honestly do the same thing, with little more than UI tweaks and differences between them.

Disconnect (Firefox/Chrome/IE/Safari) is our pick because it continues to add useful features and improve its database, and its secure Wi-Fi and bandwidth optimization features aren't available in other tools. It blocks third party tracking cookies and gives you control over all site scripts and elements from a simple-to-use toolbar menu. It also protects you from tracking by social networks like Facebook, Google, and Twitter, which use your browsing even off-site to collect data about you. Finally, Disconnect protects you from sidejacking (or widgetjacking), where an attacker can use stolen cookies to access personal data without having to know your password, with its Secure Wi-Fi feature.

The Alternatives:

Disconnect is our favorite of the bunch, but there are other extensions that do the same thing (or some of the same things) if you need alternatives:

• Do Not Track Me (Firefox/Chrome/IE/Safari): Do Not Track Me offers a drop-down browser toolbar that shows you which tracking cookies and scripts have loaded on a site, and gives you the option to disable them entirely. It's similar to other tools, but with a friendly, colorful UI. It also leaves plug-ins and scripts enabled until you specifically turn them off. Disconnect is much more powerful and feature rich, Do Not Track Me might appeal to people who want to leave everything on and disable items selectively.
• Ghostery (Firefox/Chrome/Safari/IE): Much like the others, Ghostery blocks tracking cookies and scripts from running by default. It'll also show you what it's blocked, so you can see whether the items it's blocked are harmless or intrusive. Ghostery's database is huge, and gives you the power to block all, some, or none of the things that it finds. Unfortunately, it hasn't been updated in a while and Disconnect's features have surpassed it. Still, it's a solid alternative for people who can't get Disconnect's latest version.
• Priv3 (Firefox): Priv3 is probably the least intrusive and most transparent of this breed of privacy protecting add-on. All it does is stop social widgets and plugins from loading and sending your data to social networks until you interact with them. Since Facebook is tracking you and Twitter is tracking you, even when you're not using those networks, Priv3 is a lightweight tool to stop them, but keep in mind that it doesn't do anything else.

You could argue that Disconnect, Do Not Track Me, and Ghostery all do the same thing, but we still think that Disconnect is the most robust of the three. That said, Disconnect's newest version is only available for Firefox and Chrome, so if you prefer Safari, IE, or Opera, we'd suggest going with Ghostery instead.

Some of this comes down to personal preference and what works best in the browser you use most often, so don't hesitate to try something else if one doesn't work. The worst that can happen is you're extra protected, and none of these add-ons have that much resource overhead.

Additional Privacy Tools You Should Have

In addition to privacy protecting tools and ad blockers, a few other add-ons, utilities, and services came up while we were researching this piece that you shouldn't roam the web without.

HTTPS Everywhere (Firefox/Chrome) is a must-have regardless of what other security tools you opt to use. Once installed, the extension will shunt your connection to SSL whenever possible, and will try to find secure versions of the sites you visit. It's a great way to protect your browsing without really lifting a finger. It can break some sites that weren't meant to work with HTTPS though, so you may have to whitelist sites from time to time if the secure version doesn't work.

A Virtual Private Network (VPN) encrypts all of your internet traffic and offers the most possible protection from prying eyes. We've covered VPN services in detail before, including what to look for, what makes a good one, and some great providers to try. Look for a provider that keeps only the minimum required logs for troubleshooting purposes, offers strong encryption, is well regarded by its users, and offers multiple exits locations. Contrary to common belief, don't just spring for any offshore VPN—just because your VPN provider is in a far-off country doesn't mean it's secure, or at all private. For more suggestions, our friends at TorrentFreak just updated their list of providers that take your anonymity seriously, and it looks a bit like ours. If you're just looking for a free or freemium service to keep you protected while you're out and about, and you're not ready to try on a full, paid, VPN service yet (or roll your own), try Hotspot Shield, Hideman, or Tunnelbear.

Antivirus and Antimalware utilities are essential to protecting security. It may sound like "How to Internet: 101," but taking care to avoid suspicious sites, practice good internet hygiene (eg, not opening suspicious attachments, checking file names before you download, etc), and keep updated antivirus and antimalware tools on your PC is important. Often the term "privacy" is couched in terms of advertising and marketing, but the risk of identity theft and getting infected with ransomware is growing. We've recently updated our pick for the best antivirus app for Windows, and we have some options for Mac as well. Looking for antimalware? These suggestions will get you started.

Other Security Tools You Probably Don't Need, but May Want

We've covered the most important privacy and security tools you need already, but there's always another step you can take to make sure your communications can't be intercepted and read by third parties. Here are a few other tools you might consider:

• Web of Trust (WOT): (Firefox/Chrome/Safari/IE) WOT does a great job at ranking sites by reputation, and will show you whether a specific site has been known to host malware or is loaded with tracking cookies and scripts that could result in malware or adware on your system. It's not an ad blocker or anything, but it does rank and notify you when the site you're visiting is less than trustworthy. Advanced users may not need the hand-holding, but beginners and anyone else who wishes they could see behind the veil of what's loaded when they visit a site may.
• Encryption for Email and Chat: If you want to take desktop security to a whole new level, you might consider encrypting your email and instant messages. Our favorite chat clients for Windows and Mac, Pidgin and Adium (respectively) can both do this pretty easily. If you need another option, we've mentioned TorChat as well. For your email,SafeGmail or Mailvelope gets the job done for Gmail and other webmail users. For everyone else, PGP is the way to go. Here's how to set it up.
• Tor (Windows/Mac/Linux) encrypts your web traffic and bounces it across a series of other computers, known as relays, to keep their location and browsing private and anonymous. Granted, that anonymity only goes so far: traffic leaving a Tor exit node is unencrypted, so while traffic inside the Tor network is encrypted and anonymous, ultimately your browsing comes out of someone else's pipe and looks like normal web traffic. Tor is built for anonymity with a nod to security—not the other way around. You can read more about how Tor works here. It's a great way to stay anonymous on the internet, but don't mistake it for something like a VPN.

There's a ton of overlap between a lot of these tools, which is why we wanted to trim the fat and pick specifics that we think you should install. Keeping too many on your system isn't necessarily a bad thing, but it can slow your computer down at worst, and at best it doesn't offer you any additional protection. If you're not using any because you're not sure which to use, now you have some solid options. Either way, the tools are at your fingertips. It's never been easier to take the reins for yourself and make the web an opt-in experience instead of an opt-out one.

Or Use 

Tor Browser :

How to use the Tor Browser to surf the web anonymously

Recently, BoingBoing ran an article about how some librarians in Massachusetts were installing Tor software in all their public PCs to anonymize the browsing habits of their patrons. The librarians are doing this as a stand against passive government surveillance as well as companies that track users online and build dossiers to serve highly-targeted advertising.

It's an interesting project and a bold stand for user privacy. But the good news is that if you want to browse anonymously, you don't have to go to the library to use Tor. Connecting to the Tor network from your own PC is quick and painless thanks to the Tor project's dead simple Tor Browser.

What is Tor?

Tor is a computer network run by volunteers worldwide. Each volunteer runs what is called a relay, which is just a computer that runs software allowing users to connect to the Internet via the Tor network.

Before hitting the open Internet, the Tor Browser will connect to several different relays, wiping its tracks each step of the way, making it difficult to figure out where, and who, you really are.

While Tor is gaining a reputation as a tool for buying illicit goods online, the software has numerous legitimate uses. Activists masking their location from oppressive regimes and journalists communicating with anonymous sources are two simple examples.

If, like the librarians in Massachusetts, you don't have an exotic reason for using Tor, it's still a good tool to keep your browsing private from your ISP, advertisers, or passive government data collection. But if the NSA or other three-letter agency decided to actively target your browsing habits that's a whole different ballgame.

Getting started

The easiest way to use Tor is to download the Tor Browser. This is a modified version of Firefox along with a bunch of other software that connects you to the Tor network.

Once you've downloaded the installer, you have two options: You can just install the software or you can check the installation file's GPG signature first. Some people like to check the installation file to make sure they've downloaded the proper version of the browser and not something that's been tampered with.

But checking the GPG signature is not a painless process and requires an additional software download. Nevertheless, if that's something you'd like to do, the Tor Project has a how-to explaining what's required.

Installing Tor

Whether or not you've checked the GPG signature, the next step is to install the Tor browser itself.

You can install the Tor browser on a USB stick.

For Windows, the Tor Browser comes as an EXE file, so it's basically like installing any other program. The key difference is that the browser doesn't have the same default location as most programs. Instead, it offers your desktop as the install location.

The Tor browser does this because it is portable software and doesn't integrate into a Windows system the way typical programs do. This means you can run the Tor browser from almost anywhere—the Desktop, your documents folder, or even a USB drive.

When you arrive at the Choose install location window Click Browse... and then choose where you'd like to install the browser. As you can see in the image above, I installed it to a USB drive that I tote around on my key chain.

Once you've got your location selected, just press Install and Tor takes care of the rest.

Using the Tor Browser

Once the browser is installed, you'll have a plain old folder called Tor Browser. Open that and inside you'll see "Start Tor Browser.exe". Click that file and a new window opens asking whether you'd like to connect directly to the Tor network or if you need to configure proxy settings first.

Most people can simply connect directly to the Tor network to get started. (Click to enlarge.)

For most people, choosing the direct option is best, so choose Connect. A few seconds later a version of Firefox will launch and you are now connected to the Tor network and able to browser in relative anonymity.

To make sure you're connected to Tor go to whatismyip.com, which will automatically detect your location based on your Internet Protocol address. If your browser shows you coming from a location that is not your own, you are good to go. Just make sure you do all your anonymous browsing from the Tor Browser itself as other programs on your system are not connected to Tor.

But browsing anonymously on Tor isn't quite as easy as booting up a program. There are also some rules of the road you should observe, such as connecting to every site possible via SSL/TSL encryption (HTTPS). If you don't, then anything you do online can be observed by the person running your exit node. The browser has the Electronic Frontier Foundation's HTTPS Everywhere add-on installed by default, which should cover your SSL/TSL needs most of the time.

The Tor Project has more tips on browsing anonymously.

Also, remember that browsing in anonymity does not make you immune to viruses and other malware. If you are going to the seedier parts of the Internet, Tor cannot protect you from malicious software that could be used to reveal your location.

For the average Internet user, however, the Tor Browser should be enough to stay private online.

 8 steps to keep your computer safe on internet

Internet Safety is difficult, yet critical. Here are eight key steps to keep your computer safe on the internet.

Viruses and spyware and worms … oh my!

The very concept of “internet safety” is almost an oxymoron these days.

It seems like not a day goes by that we don’t hear about some new kind of threat aimed at wreaking havoc across machines connected to the internet.

Anti-Microsoft sentiment coupled with the massive installed base make Microsoft products, and particularly Microsoft Windows, an irresistible target for hackers and “script kiddies.” In recent years, products like Adobe Reader, Java, Flash, Firefox, and more have come under attack as their popularity has increased. Even Macs are no longer invulnerable.

Here are some things you can (and should) do to stay safe.

1. Use a firewall

A firewall is a piece of software or hardware that sits between your computer and the network and only allows certain types of data to cross. For example, a firewall may allow checking email and browsing the web, but disallow things like Windows file sharing.

If you’re connected to the internet through a router, then you already have a type of hardware firewall that prevents random networking-based external threats from reaching your computers.

If you’re using a dial-up internet connection, a firewall may not be as important, although it doesn’t hurt to have one. A software firewall may be your only option.

2. Scan for viruses

Sometimes, typically via email or other means, viruses are able to cross the firewall and end up on your computer anyway.

A virus scanner will locate and remove them from your hard disk. A real-time virus scanner will notice them as they arrive, even before they hit the disk, but at the cost of slowing down your machine a little, and occasionally even interfering with other operations.

Important: Because new viruses are arriving every day, it is critical to keep your virus definitions up-to-date. Be sure to enable the scanning software’s automatic-update feature and have it do so every day.

3. Scan for spyware

Spyware is similar to viruses in that they arrive unexpected and unannounced and proceed to do something undesired. Spyware can be relatively benign from a pure safety perspective, as it might “only” spy on you. But that’s enough. It can violate your privacy by tracking the websites that you visit, add “features” to your system that you didn’t ask for, or record your keystrokes and steal your account login information for any online services that you might use.

Some of the worst offenders are spyware that hijack normal functions for themselves. For example, some like to redirect your web searches to other sites to try and sell you something. Of course, some spyware is so poorly written that it might as well be a virus, given how unstable it can make your system. The good news is that, like virus scanners, there are spyware scanners that will locate and remove the offending software.

4. Stay up-to-date

I’d wager that over 90% of virus infections don’t have to happen. Software vulnerabilities that malware exploits usually already have fixes available by the time the virus reaches a computer.

The problem? The user simply failed to install the latest updates that would have prevented the infection in the first place.

The solution is simple: enable automatic updates in both Windows and applications and visit Windows Update periodically.

5. Educate yourself

To be blunt, all of the protection in the world won’t save you from yourself.

• Don’t open attachments that you aren’t positive are OK; attachments are one of the most common ways that malware sprads.
• Don’t fall for phishing scams. Be skeptical. Phishing is a common way that online accounts are hacked into and can lead to more serious issues like identity theft.
• Don’t click on links in email that you aren’t positive are safe.
• Don’t install “free” software without checking it out first. Many “free” packages are so because they come loaded with spyware, adware, and worse.

When visiting a website, did you get a pop-up asking if it’s OK to install some software that you’re not sure of because you’ve never heard of it? Don’t say OK.

Not sure about some security warning that you’ve been given? Don’t ignore it.  Research it before doing anything.

And of course, choose secure passwords and don’t share them with anyone.

6. Secure your home network and your mobile connection

If you’re traveling and using internet hot spots, free WiFi, hotel-provided internet, or internet cafes, you must take extra precautions.

Make sure that your web email access – or for that matter any sensitive website access – is only via secure (https) connections or that your regular mail program is configured to use encrypted connections as well. Don’t let people “shoulder surf” and steal your password by watching you type it in a public place.

Make sure that your home WiFi has WPA-security enabled if anyone can walk within range and that you’ve changed your router’s administrative password.

7. Don’t forget the physical

An old computer adage is that “if it’s not physically secure, it’s not secure.”

All of the precautions that I’ve listed above are pointless if other people can get at your computer. A thief can easily get at all of the unencrypted data on your computer if they can physically get to it. Even login passwords can be trivially bypassed if someone has access to your computer.

The common scenario is a laptop being lost or stolen during travel, but I’ve also received many reports of people who’ve been burned because a family member, friend, significant-other, or roommate accessed their computer without their knowledge.

8. Back up

I know that backing up doesn’t feel like a “security” measure, but ultimately, it can be one of the most powerful ways to recover if you even encounter a security related issue.

Having a recent backup to restore to can quickly undo the damage done by almost any form of malware.

Having a back copy of your data (all your data) can help you recover after computer is lost or stolen (not to mention when a hard disk dies).

Backing up your email and contacts can be a critical way to restore your world should your online account ever be compromised.

Backups truly are the silver bullet of the computing world: a proper and recent backup can help save you from just about any disaster, including security issues.