List of Firefox add-ons with 2-2.99 stars

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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.

1,588 results. Page 1 of 64.

#1, Cisco Webex Extension

Cisco WebEx

Join Webex meetings using Firefox ™

2.88 (313)

982,259

#2, 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)

162,795

#3, Converter Suite & Custom Web Search

ConverterSuite

Add the Converter Suite & Custom Web Search extension to convert files by clicking the favicon on the toolbar & access Yahoo® search from your browser.

2.33 (3)

83,249

#4, Yandex.Bar

Yandex

Advanced toolbar for Firefox

2.27 (257)

52,903

#5, Stylish - Custom themes for any website

userstyles.org

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

2.81 (934)

36,623

#6, Ezy Speed Test & Custom Web Search

Ezy Speed Test

Add the Ezy Speed Test & Custom Web Search extension and click the favicon on your toolbar to access a speed test site & Yahoo® search.

2.33 (3)

30,219

#7, Song Identifier

losnappas

Music recognition. Like shazam or soundhound.

2.88 (447)

28,511

#8, マイナポータル

デジタル庁

様々なオンライン行政サービスで、マイナンバーカードを利用するためのアプリケーションです。

2.85 (178)

28,021

#9, Eno® from Capital One®

Capital One

Shop more securely through your desktop browser with Eno®, your Capital One® assistant.

2.85 (608)

27,886

#10, Save as PDF

PDFCrowd

Lets you download web pages as PDF in one click.

2.72 (259)

24,520

#11, YouTube mp3 Downloader

Youtube Download Tool

The YouTube mp3 Downloader Add-on includes a Button on any YouTube Page and allows you to convert the YouTube Video to a mp3 with just one click. Compatible with new FireFox Quantum 57+

2.73 (500)

21,880

#12, GMX MailCheck for Firefox

1&1 Mail & Media GmbH

Mail notifier for multiple email accounts

2.86 (132)

18,085

#13, Bulk Media Downloader

InBasic

Grab and download media (image, audio, and video) resources by monitoring network (like FlashGot or Flash video downloader extensions)

2.07 (682)

17,283

#14, ColorfulTabs

Shivanand Sharma

The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.

2.58 (490)

15,125

#15, Youtube Downloader

Nadia Jevelyn

Please play the video on youtube then click the icon in the top right tab to download mp3 or videos. Note: This add-on will direct the user to a downloader website to download the video or mp3 of your choice from youtube.

2.99 (159)

14,747

#16, Lean Library

TfS Extensions

The Lean Library extension is a free tool which assists your library in delivering their services directly into your research workflow in more ways than one!

2.96 (49)

14,545

#17, Tile Tabs WE

DW-dev

Take tabs from parent windows and arrange them in layouts of tiled sub-windows, using the toolbar button, context menu or keyboard shortcuts. Makes it easy to browse, compare or monitor multiple pages. Synchronize scroll. Save and re-open layouts.

2.85 (326)

12,036

#18, Color Picker

Mark Lumnert

Search for the perfect color via an stylish color picker in a popup.

2.62 (21)

10,946

#19, X-notifier (for Gmail,Hotmail,Yahoo,AOL ...)

Byungwook Kang

Notifier for gmail, yahoo, hotmail, aol and more webmails. X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails... Supports : gmail, yahoo, hotmail, and more

2.89 (415)

9,409

#20, Theme Font & Size Changer

Baris Derin

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

2.22 (219)

7,274