Extensions by Weekly Downloads

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Diagnostics for Adblock Plus No Restart

Diagnostics tool for Adblock Plus, provides some insight into internal processes of Adblock Plus.

Rated 5 out of 5 stars (1)
5,961 weekly downloads

Theme Font & Size Changer No Restart Featured

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (166)
5,898 weekly downloads

New Tab Homepage No Restart

A very simple tabbed browsing extension that loads your homepage when you open a new tab. If you have multiple homepages, the first is chosen.

Rated 4 out of 5 stars (356)
5,895 weekly downloads

Youtube MP3 Downloader using youtube-mp3.org No Restart

Convert Youtube video to mp3 in high quality mode with a bitrate of at least 128 kBit/s via youtube-mp3.org.

Right click on Youtube page, and click 'Download as MP3'

Rated 4 out of 5 stars (60)
5,890 weekly downloads

All-in-One Sidebar

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

Rated 5 out of 5 stars (1,403)
5,803 weekly downloads

Selenium IDE Button

Just one simple toolbar button to open Selenium IDE. You need to have installed Selenium IDE: http://seleniumhq.org/projects/ide/

Rated 5 out of 5 stars (8)
5,729 weekly downloads

Blur No Restart Featured

Protect your Passwords, Payments, and Privacy.

Rated 3 out of 5 stars (735)
5,625 weekly downloads

AntiGameOrigin v6 No Restart

AntiGameOrigin - the other OGame experience for all communities.

Rated 5 out of 5 stars (2)
5,619 weekly downloads

Auto Form

Copy/Paste all fields from a web form in one click.

Rated 3 out of 5 stars (16)
5,608 weekly downloads

New Tab Override (browser.newtab.url replacement) No Restart

This add-on brings back the ability to change the page which is shown when opening a new tab.

Rated 5 out of 5 stars (111)
5,524 weekly downloads

Website Blocker

All the bugs have been fixed!
Everyone needs this add-on!
Block websites you don't want the browser to get into.
Block by a whole domain name or a specific address.
Block until further notice or until a certain date.

Rated 2 out of 5 stars (6)
5,517 weekly downloads

Google™ Translator No Restart Featured

Google™ Translator is a handy multi-language translator built on top of Google Translate. It gives you Google Translate UI feel right on your Firefox toolbar.

Rated 4 out of 5 stars (115)
5,453 weekly downloads

Translate This! No Restart

Translate the whole entire page or just a selection using Google Translate.

Rated 4 out of 5 stars (95)
5,429 weekly downloads

MeasureIt

Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.

Rated 4 out of 5 stars (341)
5,400 weekly downloads

Random Agent Spoofer No Restart

Rotates complete browser profiles ( from real browsers / devices ) at a user defined time interval. It includes many extra privacy enhancing options

Rated 5 out of 5 stars (103)
5,399 weekly downloads

YouTube Downloader Plus No Restart

Extremely lightweight YouTube™ video and audio downloader (M4A, MP4, HD, 4K, 60 FPS, and more).

Rated 5 out of 5 stars (6)
5,382 weekly downloads

User Agent Overrider No Restart

Override browser user agent string

Rated 4 out of 5 stars (51)
5,382 weekly downloads

Unlimited Free VPN by betternet No Restart

betternet is the easiest way to connect to the web without censor or restrictions. An unlimited FREE VPN with no ads, no registration, no b******t; we just protect your privacy and identity. That’s it!

Rated 2 out of 5 stars (24)
5,369 weekly downloads

New Tab by Yahoo No Restart

This Add-on brings a fresh look to your new tab page, powered by Yahoo. It also provides default Yahoo experience for search and homepage.

Rated 2 out of 5 stars (19)
5,300 weekly downloads

Video Downloader Prime No Restart

Easily download most popular video formats.

Rated 5 out of 5 stars (15)
5,187 weekly downloads