Power User Pack

by IDenis

82 Add-ons in this Collection

Reload Plus by bwProductions

Rated 5 out of 5 stars 80 reviews

18,474 users

Supercharge your reload button and hotkeys!

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,557 reviews

331,614 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Session Manager by Michael Kraft

Rated 5 out of 5 stars 459 reviews

284,955 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

264,347 users

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

Webmail Ad Blocker by Jason

Rated 4 out of 5 stars 195 reviews

114,722 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.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 350 reviews

138,040 users

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

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,415 reviews

185,788 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.

Tree Style Tab by Piro (piro_or)

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Experimental

Rated 4 out of 5 stars 1,336 reviews

105,390 users

Show tabs like a tree.

Fast Dial by telega

Rated 3 out of 5 stars 2,514 reviews

119,281 users

Visual bookmarks for Firefox.

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 100 reviews

74,953 users

Wappalyzer is a browser extension that identifies software on websites.

FEBE by Chuck_Baker

Rated 4 out of 5 stars 655 reviews

111,849 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

91,543 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 338 reviews

148,736 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 689 reviews

91,202 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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