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FoxyProxy Standard Nên dùng
FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.
Capture & Print No Restart Nên dùng
This add-on lets you print a webpage's area easily.
AdBlock for YouTube™ No Restart Nên dùng
AdBlock for YouTube™ removes all annoying Ads from YouTube
User-Agent Switcher No Restart Nên dùng
Quickly and easily switch between popular user-agent strings.
Smart HTTPS No Restart Nên dùng
Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts it back to HTTP.
Omnibar Nên dùng
Integrates location bar and search bar into one. Shows search and url suggestions. Quickly switch search engine using search keywords. Provides different auto-complete popup styles for compact displays.
YouTube Enhancer Plus Nên dùng
Improve your watching experience! Ad Blocker, Autoplay Manager, Auto HD, Auto Replay, Cinema Mode, and more.
QR Code Image Generator No Restart Nên dùng
Create a QR Code of the selected text or current URL. Use CTRL-SHIFT-Q to quickly see the QR Code. Also possible to create a QR Code from free text within Firefox. Works completely offline! Now with UTF8 support.
gtranslate No Restart Nên dùng
With gtranslate you can translate any text in a web page just by selecting and right-clicking over it. The extension uses the Google translation services to translate the text.
HTTPS Everywhere Nên dùng
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
User Agent Switcher Nên dùng
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
Master Password+ Nên dùng
Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows
iMacros for Firefox Nên dùng
Automate Firefox. Record and replay repetitive tasks. If you're tired of manually visiting the same sites, filling out forms, downloading files and extracting data, then iMacros is for you! Save time, effort and money with iMacros browser automation!
Google Translate Anywhere No Restart Nên dùng
Dictionary (Google Translate) Anywhere provides access to a floating multilingual Google Translate panel on any webpage.
Saved Password Editor Nên dùng
Thêm tính năng tạo và thay đổi các mật khẩu trong cửa sổ quản lý mật khẩu.
Free Memory No Restart Nên dùng
An add-on to perform free-memory operations without visiting about:memory.
For Firefox 40+, try Free Memory 2.0 https://addons.mozilla.org/en-US/firefox/addon/free-memory-20/
Tab notifier 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!
Tab Groups No Restart 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.
Forecastfox (fix version) Nên dùng
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!