Add extensions, get work done

Select text and search from the context menu or a tiled popup using any of your installed search engines. Add new search engines with a right-click, edit favicons and query strings. POST compatible, simple UI, highly configurable. For FF 57+

Use the SecureSafe password manager to keep track of your ever-growing list of passwords.

Sorts your bookmarks. Supports sorting by title, URL or date added.

Make any webpage into a content editable document and modify it via toolbar popup!

A slideshow extension for Booru sites, intended to save you from having to manually navigate between images, so that you can relax and just enjoy them at your pace.

Replaces the chat on Twitch.tv with Chatterino. Only works on Windows.

Get Stuff Instantly -- Download and play it anywhere :-) This extension allows you to add Links to the Seedr service directly, so you can Download, Play and access them anywhere. * An https://www.seedr.cc account is required

Extension de signature qui permet la signature de document électronique au format PAdES ou XAdES, développée par DOCAPOSTE-FAST

Simulates information a color blind person receives and/or adds a daltonization filter. This addon can be used for testing a website accessibility for the color blind and / or to educate (yourself) on the topic of color blindness.

Nightly Tester Tools (NTT) is an add-on for aiding testers of Nightly builds of Mozilla apps including Firefox.

Intel map of Ingress game with IITC-CE ( iitc.app ) in your browser.

Integrate Mozilla Firefox with uGet download manager. Please note that "uget-chrome-wrapper" has been renamed to "uget-integrator". https://github.com/ugetdm/uget-integrator

Optionally use Internet Download Manager instead of the built-in download manager to get large files

Mass follow, mass unfollow, mass like, mass unlike, mass retweet and mass unretweet on Twitter with powerful options.

Automatically closes inactive tabs and makes it easy to get them back

Allows sharing pages, videos, and images from your browser to KDE Connect devices. This extension relies on a Native Messaging Host to communicate with KDE Connect devices. See https://github.com/pdf/kdeconnect-chrome-extension for installation.

Let you UPPERCASE, lowercase or tOGGLE any selection of text in an input or textarea field by choosing a Change Case item in your context menu.

Discover, share, import, and use the best prompts for ChatGPT & save your chat history locally (formerly ChatGPT History)

The Quantum-compatible version of the old favorite. Open daily websites with the click of a button! Users can customize lists for each day of the week, as well as an "every day" list.

Easy-to-use and powerful translator for your browser.