by Michelle

17 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,342 reviews

16,156,441 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,082 reviews

1,675,835 users

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Awesome Screenshot Plus - Capture, Annotate & More by Diigo Inc.

Rated 4 out of 5 stars 1,494 reviews

453,346 users

Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and text, blur sensitive info, one-click upload to share. And more!

Web Developer by chrispederick

Rated 5 out of 5 stars 265 reviews

376,647 users

The Web Developer extension adds various web developer tools to the browser.

Nimbus Screen Capture - editable screenshots by Nimbus Web

Rated 4 out of 5 stars 329 reviews

128,844 users

1) Screen capture web pages.
2) Selected regions.
3) Whole browser windows.
4) Slack direct upload (NEW!)
Edit screenshots and save images as local file or Google Drive. Annotate screenshots with different tools. Upload and share!

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,508 reviews

233,784 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!

ColorZilla by Alex Sirota

Rated 4 out of 5 stars 379 reviews

208,772 users

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

Wappalyzer by Elbert Alias

Rated 4 out of 5 stars 112 reviews

76,905 users

Wappalyzer is a browser extension that identifies software on websites.

MeasureIt by Kevin Freitas

Rated 4 out of 5 stars 362 reviews

115,043 users

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

ColorfulTabs by Shivanand Sharma

Rated 4 out of 5 stars 966 reviews

178,525 users

The first addon you should be installing on a fresh Firefox install. A must have. The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color.

Print Friendly & PDF by Print Friendly & PDF

Rated 3 out of 5 stars 96 reviews

35,949 users

Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet.

Webmail Ad Blocker by Jason Savard

Rated 4 out of 5 stars 211 reviews

74,161 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.

OneTab by OneTab Team

Rated 4 out of 5 stars 331 reviews

43,929 users

OneTab - Too many tabs? Convert tabs to a list and reduce browser memory

Image Zoom by Jason Adams

Rated 4 out of 5 stars 341 reviews

116,535 users

Adds zoom and rotation functionality for images...

Honey by Honey

Automatically find and try coupon codes with 1-click. Works at thousands of stores in the US, Canada, Australia, India and the UK.
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