Power User Pack

by IDenis

82 Add-ons in this Collection

Reload Plus by bwProductions

Rated 5 out of 5 stars 79 reviews

17,194 users

Supercharge your reload button and hotkeys!

BetterPrivacy-signed by IKRG

Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...

Session Manager by Michael Kraft

Rated 5 out of 5 stars 458 reviews

294,935 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

280,362 users

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

Webmail Ad Blocker by Jason

Rated 4 out of 5 stars 193 reviews

121,619 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.

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,411 reviews

197,479 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 349 reviews

146,749 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 1,329 reviews

109,574 users

Show tabs like a tree.

Fast Dial by telega

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Experimental

Rated 3 out of 5 stars 2,506 reviews

127,558 users

Visual bookmarks for Firefox.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 100 reviews

78,190 users

Wappalyzer is a browser extension that identifies software on websites.

FEBE by Chuck_Baker

Rated 4 out of 5 stars 652 reviews

116,189 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.

UnMHT by arai_a

Rated 5 out of 5 stars 224 reviews

94,872 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.

Image Zoom by Jason Adams

Rated 4 out of 5 stars 336 reviews

156,295 users

Adds zoom and rotation functionality for images...

PDF Download by Nitro PDF Software

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Experimental

Rated 2 out of 5 stars 688 reviews

101,693 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.

Html Validator by Marc Gueury

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
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