Video Speed Controller
Change speed of all videos on page. https://github.com/mikeyaworski/Video-Speed-Controller
2,864 users
RescueTime
Keep track of the time you spend in your browser, and get a clear picture of what you were doing all day.
2,859 users
Simple WebSocket Client
Construct custom Web Socket requests and handle responses to directly test your Web Socket services.
2,855 users
ContextSearch web-ext
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+
2,850 users
Clip to DEVONthink
Clip selected web content to your DEVONthink database directly from Firefox.
2,840 users
Volume Master
Boost your browser volume up to 500%! The ultimate volume booster, audio controller, sound amplifier, and tab volume control — all in one simple slider.
HTTP Version Indicator
An indicator showing the HTTP version used to load the page in the address bar.
2,797 users
GMail Checker Simple
Very lightweight Firefox 57+ (WebExtension) Compatibile Gmail checker Add-On. Onclick: open GMail. English version.
2,782 users
Meta4 ClickOnce Launcher
This extension adds support for launching ClickOnce applications from Firefox. It is needed for launching the Meta4 PeopleNet product although it can be used with any ClickOnce-based application.
2,776 users
Save In…
Adds a context menu to save media {image, video, audio, link, selection, page} in user-defined directories relative to the default download location. Save into dynamically named directories. Rules-based download renaming and routing.
2,729 users
Debrid-Link Plugin
Downloader & Seedbox. Premium link generator and torrent downloading.
2,689 users
Carbonalyser
Allows to visualize the electricity consumption and greenhouse gases (GHG) emissions that your Internet browsing leads to.
2,679 users
UltraWide Video 21:9
Allows wider than average screens (eg.21:9) to play online video content and fit the screen properly in fullscreen mode.
2,675 users
Email Extractor
Automated Email Extraction Tool which extracts email addresses from web pages and AutoSaves them to use anytime.
2,635 users
Tamper Data for FF Quantum
- Monitor live requests - Edit headers on live requests - Cancel live requests - Redirect live requests Click the blue cloud in the toolbar to start tampering. When you're done, click it again to stop.
2,632 users
Open Subtitles
Add subtitles to any HTML5 video sites such as Youtube, Netflix, Amazon Prime Video, Disney+, HBO Max and other stream sites.
2,603 users
Google Analytics Debugger
Prints useful information to the JavaScript console by enabling the debug version of the Google Analytics Javascript. P.S: this add-on is migrated from Chrome store.
2,597 users
Bluhell Firewall
Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.
2,588 users
ReYohoho Twitch Proxy 1080p/1440p в РФ
Прокси для Twitch, чтобы смотреть в 1080p/1440p (РФ)
2,585 users
Open in Foxit™ Reader
Adds a context menu item to send PDF links directly to Foxit™ Reader
2,578 users
