Download Firefox Add Ons - Best Software & Apps

  • Mozilla Firefox

    4.42

    License
    free Download
    Platform
    Windows
    Android
    Mac

    Mozilla sets the benchmark for free web browsers

    7
    31206 votes
    • PROS: Several built-in features, Extensive catalog of add-ons, Highly customizable, Security options, The auto-complete feature
    • CONS: Slow to start
  • PDF Download

    for Firefox per Firefox 3.0.0.2.1

    License
    free Download
    Platform
    Windows

    Choose how to open PDF files in Firefox for free

    8
    2060 votes
    • PROS: Reduces risk of Firefox crashing due to PDFs, Shows you the size of PDF files before downloading, Completely free
    • CONS: Sometimes crashes when opening PDFs
  • anonymoX

    2.4.7.1

    License
    free Download
    Platform
    Windows
    Mac

    Surf anonymously with Firefox

    8
    594 votes
    • PROS: Very easy to use, Pick between geographic locales, Generally very fast
    • CONS: Not very flexible
  • Firefox 64-bit

    Nightly a1 14.0

    License
    free Download
    Platform
    Windows

    Firefox: Free Web Browser for 64-bit Operating Systems

    7
    408 votes
    • PROS: Private browsing protects against tracking, Optional add-ons to customise browser, Separate address/search bars improves browser security.
    • CONS: Some issues with browser freezing
  • Adblock Plus for Firefox

    2.7.3

    License
    free Download
    Platform
    Windows

    Make browsing more comfortable by getting rid of ads

    7
    824 votes
    • PROS: Excellent help, Easy to use
    • CONS: Can seem complicated at first glance
  • FireBug

    1.9.0

    License
    free Download
    Platform
    Windows
    Mac

    Web debugging made easy in Firefox

    7
    168 votes
    • PROS: Debugs instantly , FireBug icon tells you when code is broken, Much easier than scanning through your JavaScript console
    • CONS: Only supports a limited amount of languages, Only works with Firefox
  • Windows Media Player Plugin

    Firefox 1.0.0.8

    License
    free Download
    Platform
    Windows

    Firefox Windows Media Player Plugin Lets You Browse with Tunes

    6
    350 votes
    • PROS: Control your music from your browser., Tiny install size just an optional extra., Avoid alt-tabbing.
    • CONS: Doesn?t support 64-bit.
  • Komodo Edit

    6.1.2

    License
    buy Download
    Platform
    Windows
    Mac

    The Firefox of programming environments

    7
    101 votes
    • PROS: Free to use, Works across platforms, Supports multiple languages, Expandable with add-ons
    • CONS: Doesn't support all languages, Some add-ons may conflict with others
  • Bing

    Extension 20090601

    License
    free Download
    Platform
    Windows
    iPhone
    Web Apps

    Free and Effective Online Search Engine Add-On

    7
    381 votes
    • PROS: Similar to other search engines., Can be downloaded as an add-on to Firefox in seconds.
    • CONS: Not as many search results (arguably) as larger platforms., May block certain gaming and entertainment websites from listing within the search results.
  • Pale Moon

    15.2

    License
    free Download
    Platform
    Windows

    A version of Firefox optimized for Windows

    8
    347 votes
    • PROS: Same reliability and stability as Firefox, Support for Firefox themes and add-ons
    • CONS: Some features have been left out
  • FireFTP

    2.0.7

    License
    free Download
    Platform
    Windows

    FTP server integrated into Firefox

    7
    95 votes
    • PROS: Integrates an FTP client into Firefox, Easy to use, Saves profiles
    • CONS: Sometimes seems to drop connections
  • UltraSurf Firefox Tool

    2.0

    License
    free Download
    Platform
    Windows

    Anonymous browsing for Firefox

    7
    115 votes
    • PROS: Bypasses firewalls, Masks your IP address, Encrypts all of your online activities
    • CONS: Hard to tell if it's doing anything at all
  • Tumblr Post

    1.16

    License
    free Download
    Platform
    Windows
    Mac

    Fantastic Firefox Add-on for Tumblr users

    8
    23 votes
    • PROS: Drag and drop content to post, Lots of settings, Incredibly easy to use
    • CONS: None!
  • FlashGot

    1.5.4.1

    License
    free Download
    Platform
    Windows

    Download from Firefox using your favorite manager

    8
    201 votes
    • PROS: Saves multiple links in one go, Improves the way Firefox handles downloads
    • CONS: Requires frequent updates, Not the most user-friendly
  • Utilu Mozilla Firefox Collection

    1.1.3.8

    License
    free Download
    Platform
    Windows

    Check how your website looks in different Firefox versions

    7
    121 votes
    • PROS: Install several versions of Firefox in just one click, Includes special add-ons for webmasters and developers, Easy, straightforward installation
    • CONS: It doesn't include versions before 2.0
  • Firefox web browser

    5.0

    License
    free Download
    Platform
    iPhone

    A free app for iPhone

    9
    14 votes
    • WordReference Translator

      1.5.0

      License
      free Download
      Platform
      Windows

      Instant translations in Firefox thanks to WordReference

      6
      62 votes
      • PROS: Instant translation embedded in Firefox, Support for dozens of language combinations, Access to WordReference forums
      • CONS: Pop-up window is not very usable, Opens up in a whole new tab
    • Google Toolbar for Firefox

      (Firefox) 7.1.20110316

      License
      free Download
      Platform
      Windows

      Translations, side-wikis and sharing instantly via Firefox

      7
      292 votes
      • PROS: Translates pages automatically in Firefox, Allows you to share web pages instantly, Write your own side wiki opinions of web pages, Lots of other browser enhancements
      • CONS: Can get cluttered with too many gadgets, May cause memory leak problems
    • RedShift

      Firefox add-on beta 3.6

      License
      free Download
      Platform
      Windows

      Give Firefox a darker look

      6
      23 votes
      • HTTPS Everywhere

        3.1.3

        License
        free Download
        Platform
        Windows
        Mac

        Activate default HTTPS while browsing with Firefox

        8
        25 votes
        • PROS: Invisible functioning, No configuration needed, Enable and disable individual sites
        • CONS: Modifying sites requires technical skill
      Softonic’s Best Rated Software for this topic
      #NameVersionVotesRatingPlatform
      1for Firefox per Firefox 3.0.0.2.120607.9Windows
      22.4.7.15947.9Windows, Mac
      34.42312067.4Windows, Android, Mac
      42.7.38247.2Windows
      5Nightly a1 14.04086.8Windows