Top 10 Best FreeFfirefox Extensions/Add-on:

                    

Adblock plus :

 

             Adblock plus is the most popular extension which supports almost all the browsers and one of the best add-on used in the firefox. Over 300 million downloads and it is completely free. Adblock plus do not collect your personal data means privacy guarranted.

Ø  It can block tracking, malware domains, banners, pop-ups and video ads even in social network and youtube

Ø  Some ads not being blocked because to support configurable websites.

 

Firebug:

            Firebug is 100% free extension and open source.

Ø   Firebug helps to edit, debug and can see CSS, HTML and Javascript live while you are browsing.

Ø  It integrates with firefox to put a wealth of development tools at your fingerprints while you browse.

Wot:

          Wot supports almost all the browsers and its completely free.

Ø  You can vote to websites which you like.

Ø  Wot helps to secure your browser from online threats and malwares, can detect scams, untrustworthy links and that’s note done by the antivirus software.

Greasemonkey:

        Greasemonkey is a firefox extension and it is free.

Ø  You can customize the appearance of pages of any popular websites by small change in the script.

Ø   You can change the web content after or before the web page is loaded (argument browsing).

Saved Password Editor:

        

Ø  It helps to manage your passwords and disables password saving in certain websites.

Ø  You can use this add-on to enter information manually.    

      

Download Them All:

          It is a one of the best extension of firefox and it is completely free.

Ø  The download manager which works inside firefox and that adds advanced download capabilities to the browser.

Ø  It downloads all the links and images of a website and it accelerates download speed up to400%.

      

         

Foxy Tunes:

         Foxy tunes is a firefox add-on which allows you to control music player through your browser

Click and Clean:

            It works in silence at the background, which cleans the browsing history, temporary internet files and download history.   If you are using c cleaner this add-on is better than that and its completely free. The add-on has 5/5 star user rating.

Video Resumer:

 

           The video resumer helps to play the videos exactly when you pause a video at last time in the youtube.