Power User Pack

by IDenis

78 Add-ons in this Collection

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 387 reviews

181,013 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 110 reviews

66,048 users

Wappalyzer is a browser extension that identifies software on websites.

Webmail Ad Blocker by Jason Savard

Rated 4 out of 5 stars 216 reviews

62,639 users

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.

CodeBurner for Firebug by SitePoint

Rated 3 out of 5 stars 35 reviews

16,914 users

CodeBurner is a Firefox add-on that integrates with Firebug, to extend it with reference material for HTML and CSS.

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,464 reviews

129,083 users

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.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 343 reviews

100,429 users

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

Tree Style Tab by Piro (piro_or)

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Experimental

Rated 4 out of 5 stars 1,302 reviews

88,068 users

Show tabs like a tree.

Fast Dial by telega

Rated 3 out of 5 stars 2,339 reviews

82,638 users

Visual bookmarks for Firefox.

UnMHT by arai_a

Rated 4 out of 5 stars 244 reviews

85,676 users

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.

FEBE by Chuck_Baker

Rated 4 out of 5 stars 625 reviews

67,826 users

FEBE (Firefox Environment Backup Extension) allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up -- It will actually rebuild your extensions individually into installable .xpi files.

Html Validator by Marc Gueury

Rated 4 out of 5 stars 207 reviews

32,974 users

HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla. The number of errors of a HTML page is seen on the form of an icon

For Online HTML 5 validation, you need 0.962
http://users.skynet.be/mgueury/mozilla

Nightly Tester Tools by Automation Development, Tony Mechelynck, others

Rated 4 out of 5 stars 187 reviews

16,108 users

Useful tools for the nightly tester.

Reload Plus by bwProductions

Rated 5 out of 5 stars 77 reviews

10,016 users

Supercharge your reload button and hotkeys!

PDF Download by Nitro PDF Software

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Experimental

Rated 2 out of 5 stars 663 reviews

26,730 users

Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.

Remove Cookie(s) for Site by Dwipal

Rated 4 out of 5 stars 55 reviews

13,749 users

A very simple extension to remove all the cookies of currently opened site. It adds an option to the Right Click menu of the page, and a Clear Cookies Button to perform this operation. It displays the status of operation in the status bar.
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