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  • Greasemonkey

    Rated 4 out of 5 stars (959)
    Customize the way a web page displays or behaves, by using small bits of JavaScript.
    1,280,355 users
  • Flashblock

    Rated 4 out of 5 stars (1,157)
    Never be annoyed by a Flash animation again! Blocks Flash so it won't get in your way, but if you want to see it, just click on...
    742,990 users
  • EPUBReader

    Rated 5 out of 5 stars (159)
    With EPUBReader you can read ePub files just in Firefox. No additional software needed!
    437,241 users
  • Garmin Communicator

    Rated 3 out of 5 stars (26)
    The Garmin Communicator is an internet browser plugin that allows you to easily transfer data between websites and Garmin GPS devices.
    383,313 users
  • Session Manager

    Rated 4 out of 5 stars (549)
    Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.
    277,075 users
  • This official add-on enables Firefox to provide quick fixes for selected issues.
    200,944 users
  • Toolbar Buttons

    Rated 4 out of 5 stars (316)
    Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.
    131,561 users
  • Memory Fox

    Rated 4 out of 5 stars (324)
    Attempting to reduce both Browser and Flash RAM Memory usage. Memory Fox will promote the increase of available RAM memories for other application processes. Hopefully, fostering any attempts of Memory Recovery and Retention.
    125,887 users
  • wmlbrowser

    Rated 4 out of 5 stars (30)
    Simulate WAP browsing by viewing WML (Wireless Markup Language) pages.
    89,640 users
  • UnMHT

    Rated 5 out of 5 stars (204)
    UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
    87,667 users
  • Help make Firefox better. The Add-on Compatibility Reporter enables you to report if the Firefox add-ons that you're using are working properly.
    87,549 users
  • Translate This!

    Rated 4 out of 5 stars (79)
    Translate the whole entire page or just a selection using Google Translate.
    86,993 users
  • Low Quality Flash

    Rated 4 out of 5 stars (49)
    Sets Flash objects to "Low Quality" to improve performance on slower platforms (i.e. older computers, netbooks, and Firefox Mobile).
    79,464 users
  • LeechBlock

    Rated 5 out of 5 stars (507)
    LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
    77,847 users
  • Save as PDF

    Rated 3 out of 5 stars (106)
    Lets you download web pages as PDF in one click.
    74,109 users
  • Secure Login

    Rated 4 out of 5 stars (371)
    Secure Login is an extension for Firefox integrated password manager.
    54,878 users
  • Image Block

    Rated 4 out of 5 stars (125)
    Image Block adds a toggle button that conditionally blocks/allows loading of images on webpages. Blocking images results in faster browsing, especially helpful on handheld devices or slower connections like GSM/GPRS/EDGE dial-up etc.
    52,686 users
  • Proxy Selector

    Rated 4 out of 5 stars (104)
    Proxy Selector lets you switch local proxies in Firefox.
    44,398 users

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