List of Firefox add-ons with 1K-10K users

All extensions
Featured
Top grossing
Popular downloads
Extensions vs themes
By categories
By keywords
By user count
By ratings
Recently removed
Recently added
Recently updated

0 users / hidden user count
1-9 users
10-99 users
100-1K users
1K-10K users
10K-100K users
100K-1M users
1M-10M users
10M+ users

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.

2,155 results. Page 1 of 87.

#1, PKCS11 module loader

Riigi Infosüsteemi Amet

Configures Firefox to use PKCS11 for authentication

3.82 (17)

9,965

#2, Modify Header Value

Milen

Add, modify or remove a header for any request on desired domains.

3.95 (55)

9,924

#3, Danish Dictionary for the Spell Checker

MozillaDanmark

Danish dictionary for Firefox, Thunderbird and other Mozilla products.

4.47 (19)

9,902

#4, EverSync - Sync bookmarks, backup your favorites.

ApptitudeGlobal

Synchronize your bookmarks and FVD Speed Dials. Secure online access with additional features. Synchronize bookmarks between different browsers. Backup and restore your bookmarks online. Sync favorites between computers! Delete duplicated bookmarks.

3.88 (648)

9,830

#5, Yandex Evolution

Savevur

Popular Russian search engine by Yandex (Яndex, Яндекс)

3.46 (74)

9,830

#6, Auto Fullscreen

tazeat

Auto Fullscreen for Firefox Quantum

4.34 (91)

9,813

#7, New Tab Tools

Geoff Lankow

Customizes the new tab page. Add more tiles. Have a background image. Set new tile images and titles. See recently closed tabs. And more...

4.01 (354)

9,801

#8, google translate element

zupffwhy

Automatically inserts Google Translate Element into the page. Translate the entire page without leaving page or opening a new tab.

3.65 (48)

9,749

#9, daily.dev | The homepage developers deserve

Daily Dev Ltd.

Get one personalized feed for all the knowledge you need as a developer.

4.73 (218)

9,737

#10, SQLite Manager

Lunu

manage, edit, manipulate, plot and save one or multiple SQLite databases simultaneously

3.87 (124)

9,716

#11, YT Ad Speedup - Skip Ads Faster

DincaAlin

Automatically speed-up ads on videos. Save time, enhance viewing. Simple, fast, and user-friendly. Transform your browsing now!

3.90 (40)

9,716

#12, YouTube Search Engine

A. Taha Baki

Adds YouTube search engine to search engines.

4.83 (54)

9,710

#13, Vietnamese Dictionary

Minh Nguyễn

Enables spell checking in Vietnamese with a wordlist based on Hồ Ngọc Đức’s Free Vietnamese Dictionary Project.

4.83 (12)

9,649

#14, udm14

Donald Hobern

Adds a Google search engine that includes the udm=14 parameter

4.87 (23)

9,648

#15, HTTP Header Live

Martin Antrag

Displays the HTTP header. Edit it and send it.

4.77 (39)

9,637

#16, Calendly: Meeting Scheduling Software

Calendly

Eliminate the back-and-forth of scheduling. Manage your meetings, scheduling links, and contacts — all in one place, from wherever you’re already working online.

4.17 (35)

9,618

#17, Bookmark Dupes

Martin Väth

Display/Remove duplicate bookmarks, empty folders or descriptions

4.73 (481)

9,610

#18, Yahoo Toolbar and New Tab

Yahoo!

This Add-on gives you a simplified version of Yahoo Toolbar along with Flickr images on every new tab. It also provides quick access to your top sites.

3.70 (92)

9,561