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UnMHT

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 4 out of 5 stars (300)
37 users

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Remote XUL Manager

Manages the Remote XUL whitelist to allow websites and local files to load XUL content. For versions compatible with Firefox 41 and lower, see All Versions page below.

Rated 5 out of 5 stars (36)
12 users

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Bluhell Firewall

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (498)
134 users

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about:addons-memory

Adds an about:addons-memory page that details add-on memory usage

Rated 4 out of 5 stars (149)
9 users

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URL Fixer

URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.

Rated 4 out of 5 stars (162)
3 users

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URLFilter

Block advertisement and access to adult sites

Rated 4 out of 5 stars (23)
22 users

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Extension Auto-Installer

Important note: This extension will not work in Firefox 57 and above. Providing this functionality in Firefox is no longer possible, the extension is discontinued.

Rated 5 out of 5 stars (48)
5 users

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Safe for Amoled

Darkens the background of the page

Rated 3 out of 5 stars (19)
2 users

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mozCleaner

Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.

Rated 3 out of 5 stars (6)
6 users

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About Startup

Displays startup timings

Rated 4 out of 5 stars (14)
0 users

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GitHub Extension Installer

Install Browser Extensions straight from GitHub Repositories

Rated 4 out of 5 stars (24)
1 user

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Gif Remover

To fastest your browser to surfing internet without extension gif.

Rated 3 out of 5 stars (1)
1 user

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WDownloader WGrabber

WDownloader plugin for Firefox

Rated 5 out of 5 stars (1)
0 users

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WebODF

Viewer for OpenDocument Format office files. It can display documents saved from LibreOffice, OpenOffice, Calligra, Abiword, Microsoft Word, Excel, PowerPoint. The documents should be saved in the OpenDocument Format.

Rated 4 out of 5 stars (9)
2 users

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Click-to-Play Manager

Manages the Click-to-Play domain whitelist.

Rated 4 out of 5 stars (14)
4 users

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