Download Firefox Add Ons - Best Software & Apps

Mozilla Firefox 54.0.1

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Platform

Windows

Android

Mac

Mozilla sets the benchmark for web browsers

19877 votes
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- 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

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Platform

Windows

Choose how to open PDF files in Firefox

462 votes

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- PROS: Reduces risk of Firefox crashing due to PDFs, Shows you the size of PDF files before downloading
- CONS: Sometimes crashes when opening PDFs
Firefox 64-bit Nightly a1 14.0

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Platform

Windows

Firefox: Free Web Browser for 64-bit Operating Systems

382 votes

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- 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,
anonymoX 2.4.7.1

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Platform

Windows

Mac

Surf anonymously with Firefox

506 votes
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- anonymoX for Windows
- anonymoX for Mac
- PROS: Very easy to use, Pick between geographic locales, Generally very fast
- CONS: Not very flexible
Bing Extension 20090601

License

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Platform

Windows

iPhone

Web Apps

Free and Effective Online Search Engine Add-On

217 votes
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- 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.,
FireBug 1.9.0

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Platform

Windows

Mac

Web debugging made easy in Firefox

116 votes
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- FireBug for Windows
- FireBug for Mac
- 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

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Platform

Windows

Firefox Windows Media Player Plugin Lets You Browse with Tunes

132 votes

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- 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

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Platform

Windows

Mac

The Firefox of programming environments

56 votes
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- Komodo Edit for Windows
- Komodo Edit for Mac
- 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,
Pale Moon 15.2

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Platform

Windows

A version of Firefox optimized for Windows

151 votes

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- PROS: Same reliability and stability as Firefox, Support for Firefox themes and add-ons
- CONS: Some features have been left out
UltraSurf Firefox Tool 2.0

License

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Platform

Windows

Anonymous browsing for Firefox

97 votes

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- 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

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Platform

Windows

Mac

Fantastic Firefox Add-on for Tumblr users

14 votes
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- Tumblr Post for Windows
- Tumblr Post for Mac
- PROS: Drag and drop content to post, Lots of settings, Incredibly easy to use
- CONS: None!
Firefox web browser 5.0

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Platform

iPhone

No votes yet

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FireFTP 2.0.7

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Platform

Windows

FTP server integrated into Firefox

35 votes

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- PROS: Integrates an FTP client into Firefox, Easy to use, Saves profiles
- CONS: Sometimes seems to drop connections
Mozilla Sunbird Beta 1.0

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Platform

Windows

Mac

Calendar application from the creator of Firefox

38 votes
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- Mozilla Sunbird for Windows
- Mozilla Sunbird for Mac
- PROS: Clean simple interface, Good complement to Firefox and Thunderbird, Features add-ons
- CONS: No integration with Outlook's calendar or Google Calendar, Not updated very often
FlashGot 1.5.4.1

License

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Platform

Windows

Download from Firefox using your favorite manager

79 votes

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- PROS: Saves multiple links in one go, Improves the way Firefox handles downloads
- CONS: Requires frequent updates, Not the most user-friendly
HTTPS Everywhere 3.1.3

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Platform

Windows

Mac

Activate default HTTPS while browsing with Firefox

13 votes
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- HTTPS Everywhere for Windows
- HTTPS Everywhere for Mac
- PROS: Invisible functioning, No configuration needed, Enable and disable individual sites
- CONS: Modifying sites requires technical skill
Alexa Toolbar (Sparky) Firefox add-on 1.5.0

License

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Platform

Windows

Get Alexa rankings and other data in Firefox

4 votes

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- PROS: Instant access to Alexa data about each site you visit, Shows related sites
- CONS: Collects basic browsing data
Fasterfox 2.0.0

License

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Platform

Windows

Mac

Superb add-on to speed-up Firefox

128 votes
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- Fasterfox for Windows
- Fasterfox for Mac
- PROS: Speeds-up Firefox instantly, Easy to configure and use
- CONS: May increase Firefox RAM usage, Increases bandwidth usage
FoxyProxy 2.18.1

License

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Platform

Mac

Windows

The most complete proxy tool for Firefox

12 votes
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- FoxyProxy for Mac
- FoxyProxy for Windows
- PROS: Easy to activate and deactivate, Automatically creates handy quick lists of proxies, Provides a huge number of proxies from around the World,
- CONS: Doesn't make finding a fast proxy based on location any easier, Customization settings may be too complicated for some,
Utilu Mozilla Firefox Collection 1.1.3.8

License

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Platform

Windows

Check how your website looks in different Firefox versions

27 votes

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- 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