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Duplicate Tabs Closer Nên dùng
Detects and automatically closes duplicate tabs.
YouTube Enhancer Plus Requires Restart Nên dùng
Improve your watching experience! Ad Blocker, Autoplay Manager, Auto HD, Auto Replay, Cinema Mode, and more.
Access to your favorite websites via an stylish speed dial!
Classic Toolbar Buttons Nên dùng
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.
Beta builds on versions page!
Shows previews of linked articles on Wikipedia pages.
Bluhell Firewall Nên dùng
Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.
Copy Plain Text 2 Requires Restart Nên dùng
Copies text without formatting
Pearltrees Nên dùng
Pearltrees lets you organize all your interests.
AdBlocker for YouTube™ removes all annoying Ads from YouTube
CookieKeeper Nên dùng
Extended Cookie Manager - Keep only wanted cookies.
Bloody Vikings! Nên dùng
Ecosia is a search engine that donates 80% of its surplus income to planting trees. By searching with Ecosia you can help the environment for free.
This extension adds Ecosia.org as the default search engine to your Firefox. Give it a try!
This extension prevents Google and Yandex search pages from modifying search result links when you click them. This is useful when copying links but it also helps privacy by preventing the search engines from recording your clicks.
Web Clipper: Easy Screenshot Nên dùng
Easy Screenshot is an easy to use screen capture tool. Simply press one of the context menu items to capture entire or a portion of your screen.
Tab notifier Compatible with Firefox 57+ Nên dùng
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!
BetterPrivacy-signed Requires Restart Nên dùng
Control a new, trickier kind of cookie, better known as an LSO or Flash cookie. The BetterPrivacy safeguard offers various ways to handle Flash-cookies created by webpages with the help of your Flash plug-in...
Font Finder Requires Restart Nên dùng
FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.
YouTube™ Control Center Nên dùng
YouTube Control Center is an open-source project that aims to enhance the overall YouTube experience by providing the end user with more control in what the playback process is concerned.
Tab Groups Nên dùng
Tab Groups are an easy way to organize a lot of tabs. You can visually group related tabs, switch between groups, and quickly search through all of your tabs to switch to a specific one.
FireGestures Requires Restart Nên dùng
A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.