Extensions by Weekly Downloads

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Webmail Ad Blocker Compatible with Firefox 57+

Expand your email area by blocking and removing ads on the right hand side of the screen when using Gmail, Hotmail, Outlook.com and Yahoo Mail.

Rated 4 out of 5 stars (213)
3,085 weekly downloads

Keepa.com - Amazon Price Tracker Compatible with Firefox 57+

→ Price History charts
→ Price Drop & Availability Alerts
→ Daily Drops, an overview of recent price drops
→ Huge frequently updated product database
→ Supports Amazon .com | .co.uk | .de | .co.jp | .fr | .ca | .cn | .it | .es | .in | .mx | .br

Rated 5 out of 5 stars (39)
3,028 weekly downloads

Forecastfox (fix version) Compatible with Firefox 57+

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!

Rated 4 out of 5 stars (282)
3,015 weekly downloads

Speed Dial (Lite) Compatible with Firefox 57+

Access to your favorite websites via an stylish speed dial!

Rated 3 out of 5 stars (14)
2,904 weekly downloads

YouTube Video and Audio Downloader (Dev Edt.) Compatible with Firefox 57+

Download YouTube videos in all available formats and extract the original audio files

Rated 4 out of 5 stars (15)
2,877 weekly downloads

Privacy Settings

Alter Firefox's built-in privacy settings easily with a toolbar panel.

Rated 5 out of 5 stars (67)
2,873 weekly downloads

Open in Tor Browser Compatible with Firefox 57+

Open current page or link in tor browser for better privacy

Rated 4 out of 5 stars (40)
2,843 weekly downloads

PDF Creator Compatible with Firefox 57+

Convert any webpage to a pdf file quickly using our converter service

Save to local disk, share by email, twitter whatever.

Install to get these great features

Rated 3 out of 5 stars (35)
2,825 weekly downloads

Instagram Compatible with Firefox 57+

Instagram Web Based

Rated 4 out of 5 stars (163)
2,686 weekly downloads

YoutubeMp3 Compatible with Firefox 57+

A Simple Addon Just Right Click on any Video and Choose Download Mp3

Rated 4 out of 5 stars (21)
2,669 weekly downloads

Violentmonkey Compatible with Firefox 57+

Violentmonkey provides userscripts support for browsers.

Rated 4 out of 5 stars (28)
2,475 weekly downloads

X-notifier (for Gmail,Hotmail,Yahoo,AOL ...) Compatible with Firefox 57+

Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more

Rated 4 out of 5 stars (1,739)
2,474 weekly downloads

JavaScript Toggle On and Off (WebExtension) Compatible with Firefox 57+

Toggle JavaScript engine on and off the easy way

Rated 4 out of 5 stars (8)
2,449 weekly downloads

VK Music - download music VK Compatible with Firefox 57+

A simple and rapidly fast extension which helps to download audio from vk.com, ok.ru and Yandex.Music.

Rated 4 out of 5 stars (73)
2,441 weekly downloads

React Developer Tools Compatible with Firefox 57+

React Developer Tools is a tool that allows you to inspect a React tree, including the component hierarchy, props, state, and more. To get started, just open the Firefox devtools and switch to the React tab.

Rated 4 out of 5 stars (10)
2,373 weekly downloads

Snap Links Plus Compatible with Firefox 57+

Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.

Rated 4 out of 5 stars (118)
2,260 weekly downloads

YouTube to MP3 Converter Compatible with Firefox 57+

YouTube to MP3 Converter and also YouTube to MP4, M4A and WEBM Downloader.
YouTube MP3 provides Audio MP3 up to 320 kbps, M4A up to 128kbps, Video MP4 and WEBM up to Maximum Available. Highest Download Quality Available. No Limits. Fast Download.

Rated 4 out of 5 stars (87)
2,238 weekly downloads

User-Agent Switcher (revived) Compatible with Firefox 57+

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (12)
2,219 weekly downloads

OneNote Web Clipper Compatible with Firefox 57+

Save anything on the web to OneNote. Clip it to OneNote, organize and edit it, then access it from any device.

Rated 5 out of 5 stars (381)
2,209 weekly downloads

h264ify Compatible with Firefox 57+

Makes YouTube stream H.264 videos instead of VP8/VP9 videos

Rated 4 out of 5 stars (27)
2,196 weekly downloads