Add extensions, get work done

Open in PDF Viewer

Easily open desired links in PDF viewer

Fonts Ninja

Speed up your design workflow!

Progressive Web Apps for Firefox

A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox

Get better search results instantly from your home and new tab page!

RESTer

A REST client for almost any web service.

Adds YouTube search engine to search engines.

SQLite Manager

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

HTTP Header Live

Displays the HTTP header. Edit it and send it.

A simple but powerful mass downloader. Download links from multiple tabs at once, from the clipboard or selected text on web pages. Advanced filtering or multi-renaming options. User-defined automatic download folders.

Clockify Time Tracker

Track time from anywhere on the web and improve productivity.

Sets "Always on Top" style for your Firefox window

Export cookies to a Netscape format cookies.txt file.

Pinned Google Calendar

Go to the pinned Google Calendar tab. If it doesn't exist, it's created.

Allows all sites to be loaded in iframes, despite X-Frame-Options header settings.

Add a badge to the toolbar that shows the number of currently open tabs in a window or all windows.

Add subtitles to any video or movie online. Be it on Netflix, Disney+, Youtube or any other online streaming platform.

Are you annoyed by YouTube™s video recommendations? Our Add-on enables the function of blocking anything you'd like. Block separate videos, users or whole channels with only one click!

Add Highlights and Notes to a Web Page

The better way to job search. Quick apply and autofill job applications in one click. Track jobs, companies, contacts, resumes & more!

Add accessibility auditing to the Firefox Developer Tools

Integrates Bulk Image Downloader (a Windows only app that must be installed separately) with FireFox. Download full sized images from almost any thumbnailed web gallery. Supports most popular image hosts such as imagevenue, imagefap, flickr, etc.

Save sessions as bookmarks and access them across devices. Advanced Session Manager: edit, save, change, restore. It can also be your best Bookmark Manager