Nejpopulárnější rozšíření


Whitelist Ninja

Parental Control by a whitelist of sites, admin is by password
We use this for young children to keep them on the sites we have pre approved
You can add new sites with the click of a button

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3 928 uživatelů

Font Finder (revived)

Get all CSS styles of selected text

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3 915 uživatelů


Block advertisement and access to adult sites

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3 873 uživatelů

WebVR Plus

Manages browser preferences for optimal WebVR support, avoiding the need to make about:config changes.

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3 857 uživatelů


Acede a todos os sites bloqueados em Portugal. Uma experiência de internet livre e sem qualquer tipo de bloqueios.

3 833 uživatelů

Enable Youtube Player Mobile

Enables the Youtube player for Firefox for Android

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3 812 uživatelů

Enable Tracking Protection

Enables Tracking Protection feature of Firefox. Works with Firefox on Android too.

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3 777 uživatelů

Dorando keyconfig Vyžaduje restart

A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)

As of version 2016.2, Custom keys (using custom JavaScript) work again!

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3 646 uživatelů

lolifox - Fierr MOD Vyžaduje restart

Replaces the error page with a lolifox appearance with additional features.

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3 593 uživatelů


Translate selected text on current web pages.
No need to leave current web pages.
Translate results come from Bing Translate.
Thanks for your support!

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3 579 uživatelů

Privatix, a free privacy protection add-on

Privatix is a privacy protection VPN with unlimited free access. Unblock any blocked website, protect WiFi, and ensure online security.

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3 524 uživatelů

Word Count Tool

A word counter that counts the number of words, characters without any extra clicks. Just select the text and right click to select the context menu to invoke the report. It gives detail report about the numbers words, characters, sentences...

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3 516 uživatelů

Save Link Menus

Adds 'Save Link' and 'Save Page' menus.

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3 471 uživatelů


Improving the Steam User Experience by giving the user information that can help make purchase decisions. We display stats about each game on steam on the store page! Super Steam is based on Enhanced Steam by jshackles. This add-on is 100% free.

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3 461 uživatelů

Extension Auto-Installer

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

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3 445 uživatelů

Nepi Jano!

Bezplatné čítanie platených Piano článkov na

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3 381 uživatelů

Keywords Everywhere

Install this keyword tool add-on to view useful keyword search volume and cost per click data on multiple websites like Google Search Console, Google Analytics, UberSuggest, Majestic Anchor Text pages and Moz Open Site Explorer

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3 379 uživatelů

YouTube Stop AutoPlay Next

Stop YouTube from Playing next tracks (aka disable autoplay button).

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3 354 uživatelů

ClassLink OneClick Extension

ClassLink provides secure and simple single sign-on access to all your apps, files and classes from anywhere.

3 344 uživatelů

Tetris Game

Tetris is a tile-matching puzzle game.

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3 323 uživatelů