Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Protractor

Protractor by gcl

Easily measure angles in your browser window.

5 (1 reviews)5 (1 reviews)
105 Users105 Users
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file

Extension Metadata

About this extension
Measure angles in the browser.

Original code by Ben Burlingham for Google Chrome, some minor adjustments to make the code run with Firefox. Credits to Ben Burlingham.

See usage description on the chrome extension site.

After installation restart of Firefox might be needed cause of redraw remainders left of the welcome dialogue. This is not a fault in the original code, it occurs in the firefox adaption.
Rated 5 by 1 reviewer
Log in to rate this extension
There are no ratings yet

Star rating saved

5
1
4
0
3
0
2
0
1
0
Read 1 review
More information
Add-on Links
  • Support site
  • Support Email
Version
4.0.1
Size
77.12 KB
Last updated
4 months ago (Apr 15, 2025)
Related Categories
  • Other
License
MIT License
Version History
  • See all versions
Add to collection
Report this add-on
More extensions by gcl
  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.