My Favorite Add-ons

by Zulkarnain K.

124 Add-ons in this Collection

XPather by Viktor Zigo

Rated 4 out of 5 stars 34 reviews

349 users

Feature rich XPath generator, editor, inspector and simple extraction tool...

Open in Browser by Rob W, Sylvain Pasche, others

Rated 5 out of 5 stars 70 reviews

5,688 users

Offers the possibility to display documents in the browser window.

JavaScript Deobfuscator by Wladimir Palant

Rated 5 out of 5 stars 26 reviews

22,854 users

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.

Firefox OS 1.1 Simulator by Myk Melez, J. Ryan Stinnett

Firefox OS Simulator is a test environment for Firefox OS. Use it to test your apps in a Firefox OS-like environment that looks and feels like a mobile phone. After installing it, go to Web Developer > Firefox OS Simulator to access its features.

TabSubmit by Kai Liu

Rated 5 out of 5 stars 14 reviews

1,333 users

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

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 78 reviews

60,797 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Stylish Sync by Herrminator

Rated 5 out of 5 stars 31 reviews

2,192 users

Sync engine for Stylish with backup / restore facility.

Save Image in Folder by Achim Seufert

Rated 5 out of 5 stars 240 reviews

15,859 users

Easily save images in personally customized...

about:addons-memory by Nils Maier

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Experimental

Rated 4 out of 5 stars 144 reviews

13,510 users

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

Scriptish by Erik Vold, Nils Maier, others

Rated 4 out of 5 stars 109 reviews

19,451 users

The greatest user script engine on the Internet (a fork of Greasemonkey).

Context Search by Ben Basson

Rated 5 out of 5 stars 287 reviews

21,896 users

Expands the context menu's 'Search for' item into a list of installed search engines, allowing you to choose the engine you want to use for each search.

Markdown Viewer by Thiht

Rated 4 out of 5 stars 51 reviews

9,679 users

Markdown document viewer.
Allows to visualize formatted markdown documents in browser.

Personal Menu (Personal Firefox Button) by Merci chao

Bring back your personal and powerful Firefox Button!

Suspend Tab by Piro (piro_or)

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Experimental

Rated 4 out of 5 stars 73 reviews

9,066 users

Suspends background old tabs automatically to save memory usage.

Key Manager by Subrata Mazumdar

Rated 3 out of 5 stars 21 reviews

32 users

KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
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