List of Firefox add-ons with Updated >2 years ago

Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.

There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.

To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.

110,114 results. Page 1 of 4405.
To Google Translate
#1, To Google Translate
To Google Translate
Juan Escobar
Right-click a section of text and click the Translate icon next to it to text translate or listen to it in your language.
4.07 (3,469)
1,021,275
Honey
#2, Honey
Honey
Honey
Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
4.51 (4,314)
825,275
Merlin
French spelling dictionary
#3, French spelling dictionary
French spelling dictionary
Olivier R.
Spelling dictionary for the French language.
4.36 (205)
299,380
French spelling dictionary
#4, French spelling dictionary
French spelling dictionary
Olivier R.
Spelling dictionary for the French language.
4.36 (205)
299,380
French spelling dictionary
#5, French spelling dictionary
French spelling dictionary
Olivier R.
Spelling dictionary for the French language.
4.36 (205)
299,380
Russian spellchecking dictionary
#6, Russian spellchecking dictionary
Russian spellchecking dictionary
Alexander Slovesnik
Russian spellchecking dictionary
4.77 (99)
262,766
Google Translator for Firefox
#7, Google Translator for Firefox
Google Translator for Firefox
nobzol
With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.
3.40 (1,175)
230,876
Pinterest Save Button
#8, Pinterest Save Button
Pinterest Save Button
Pinterest, Inc.
Save your favorite ideas online so you can easily get back to them later.
3.42 (455)
177,509
Maps Assist & Custom Web Search
#9, Maps Assist & Custom Web Search
Maps Assist & Custom Web Search
MapsAssist
Install the Maps Assist & Custom Web Search extension to get directions by clicking the favicon on the toolbar & enjoy Yahoo® search from your browser.
2.75 (4)
162,872
Belgium eID
#10, Belgium eID
Belgium eID
BOSA
Use the Belgian electronic identity card (eID) in Firefox
3.32 (1,625)
157,278
Merlin
ColorZilla
#11, ColorZilla
ColorZilla
Alex Sirota
Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...
3.86 (335)
148,681
YouTube Video and Audio Downloader (WebEx)
#12, YouTube Video and Audio Downloader (WebEx)
YouTube Video and Audio Downloader (WebEx)
feller
Download YouTube videos in all available formats and extract the original audio files
3.85 (1,738)
137,995
EPUBReader
#13, EPUBReader
EPUBReader
epubreader
Read ePub files right in Firefox. No additional software needed!
3.66 (340)
134,536
Logitech Smooth Scrolling
#14, Logitech Smooth Scrolling
Logitech Smooth Scrolling
Logitech
Logitech® Smooth Scrolling extension delivers smooth-as-smartphone scrolling in Firefox and works with most Logitech mice and touchpads — new and old. Requires Logitech SetPoint 6.60 and above and Windows 7 and above. Gaming mice not supported.
4.28 (757)
125,064
Firefox Color
#15, Firefox Color
Firefox Color
Mozilla Firefox
Build, save and share beautiful Firefox themes.
4.40 (1,289)
117,871
Google Scholar Button
#16, Google Scholar Button
Google Scholar Button
Alex Verstak, Google
Lookup scholarly articles as you browse the web.
4.47 (207)
109,168
Video Speed Controller
#17, Video Speed Controller
Video Speed Controller
codebicycle
Speed up, slow down, advance and rewind any HTML5 video with quick shortcuts.
4.56 (691)
97,624
Citavi Picker
#18, Citavi Picker
Citavi Picker
Citavi Team
The Citavi Picker is an extension for Citavi software users (www.citavi.com). The Citavi Picker lets you easily import online information.
3.89 (19)
96,648
Web Developer
#19, Web Developer
Web Developer
chrispederick
The Web Developer extension adds various web developer tools to the browser.
4.27 (472)
91,776
Absolute Enable Right Click & Copy
#20, Absolute Enable Right Click & Copy
Absolute Enable Right Click & Copy
Absolute
Force Enable Right Click & Copy
4.48 (677)
86,622
Free Download Manager official extension
#21, Free Download Manager official extension
Free Download Manager official extension
freedownloadmanager.org
Free Download Manager integration with your Firefox browser
4.21 (645)
86,170
Package Tracking Tab & Custom Web Search
#22, Package Tracking Tab & Custom Web Search
Package Tracking Tab & Custom Web Search
PackageTrackingTab
Add the Package Tracking Tab & Custom Web Search extension to track packages online by clicking the favicon on the toolbar & enjoy access to Yahoo® search from your browser.
3.50 (2)
84,928
YouTube Video Download - YouTube HD Download
#23, YouTube Video Download - YouTube HD Download
YouTube Video Download - YouTube HD Download
YouTube Video Downloader 1-Click Group
Download YouTube Videos in HD + SOUND. YouTube Video Download - YouTube HD Download is an amazing YouTube Video Downloader tool for all the download video YouTube fans. Download YouTube video with YouTube Video Download!
3.63 (1,134)
82,381
Polish Spellchecker Dictionary
#24, Polish Spellchecker Dictionary
Polish Spellchecker Dictionary
marcoos
Polish spell-check dictionary for Firefox, Thunderbird and SeaMonkey.
4.84 (51)
75,824
Privacy Possum
#25, Privacy Possum
Privacy Possum
cowlicks
Privacy Possum monkey wrenches common commercial tracking methods by reducing and falsifying the data gathered by tracking companies.
4.38 (406)
75,205
110,114 results. Page 1 of 4405.