The entire page will be fading to dark, so you can watch the video as if you were in the cinema.
Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!
YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
Now Available for: Firefox, Thunderbird and SeaMonkey!
Tab notifier Compatible with Firefox 57+ Featured
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Switch youtube to dark mode. Dark mode will help devices save battery and useful for your sleeping. Make donation for us http://www.paypal.me/hoangthanh. Thank you!
Fraudscore Compatible with Firefox 57+ Featured
Block unwanted dangerous malware while keeping your personal information safe. Fraudscore's Artificial Intelligence tracks and blocks shady advertisements, malicious websites, and software that tries to steal your personal information.
Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.
Control your cookies! This WebExtension is inspired by Self Destructing Cookies. When a tab closes, any cookies not being used are automatically deleted. Whitelist the ones you trust while deleting the rest. Support for Container Tabs.
TinEye is a reverse image search engine. The extension adds a context menu item so you can search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
EPUBReader Compatible with Firefox 57+ Featured
With EPUBReader you can read ePub files just in Firefox. No additional software needed!
An easy-to-use tab reloader with custom reloading time settings for individual tabs
Disconnect Compatible with Firefox 57+ Featured
Make the web faster, more private, and more secure.
WORKS WITH NEW YOUTUBE LAYOUT, "Best Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.
Shows previews of linked articles on Wikipedia pages.
Zoom Page WE Compatible with Firefox 57+ Featured
Zoom web pages (either per-site or per-tab) using full-page zoom, text-only zoom, automatic fit-to-width and minimum font size.
Grammarly will help you communicate more effectively. As you type, Grammarly flags mistakes and helps you make sure your messages, documents, and social media posts are clear, mistake-free, and impactful.
Displays country flag of website's server location, Whois and Geo info on a browser addressbar icon