Up & Coming Extensions

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Stop Tube HTML5 No Restart

Stops autoplay of YouTube HTML5 videos (WebM). It is Flash-Block equivalent for HTML5 videos.

Rated 3 out of 5 stars (59)
30,411 users

AntiGameOrigin v6 No Restart

AntiGameOrigin - the other OGame experience for all communities.

Rated 5 out of 5 stars (2)
3,325 users

uMatrix No Restart

Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.

Rated 5 out of 5 stars (68)
50,540 users

Rebrand

This wizard creates an XPI that rebrands Firefox, SeaMonkey or Thunderbird. You can change the brand name as well as the brand images and icons.

Rated 4 out of 5 stars (12)
2,925 users

Live HTTP Headers (Fixed By Danyial.com)

View HTTP headers of a page and while browsing.
Live HTTP Header Fix By Danyial ITs Working On Firefox Again Fixed Reply Problem

Rated 5 out of 5 stars (4)
1,059 users

Speed Start No Restart

Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks

Rated 5 out of 5 stars (20)
4,256 users

TabSubmit No Restart

Lets the user direct the submission of a form to a new tab or window. [Bug #17754]

Rated 5 out of 5 stars (14)
1,430 users

AlexaTopSites No Restart

This add-on provides quick access to Alexa's Top Sites.

Rated 4 out of 5 stars (3)
1,300 users

Copy Pure Text

Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.

Rated 4 out of 5 stars (15)
6,993 users

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)
63,952 users

Remote XUL Manager No Restart

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)
78,542 users

Join-NG

Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".

Rated 5 out of 5 stars (2)
2,193 users

Menu Wizard

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (145)
35,110 users

InfoLister

Lists installed add-ons (extensions, themes, plugins). Compatible version linked from the Developer comments section at the bottom of the addon's page.

Rated 4 out of 5 stars (30)
1,000 users

RequestPolicy v0.5 Legacy

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 3 out of 5 stars (4)
2,367 users

Clear Cache and Data No Restart

Clears the browser cache and other selected storage.

Rated 5 out of 5 stars (2)
2,587 users

FoxClocks No Restart

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (321)
75,835 users

HTTPS Everywhere

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.

Rated 4 out of 5 stars (57)
152,504 users

P7MON

Abilita la gestione alternativa degli allegati P7M

Not yet rated
2,345 users

uBlock Origin No Restart

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (385)
830,117 users