• Register or Log in
  • Other Applications
    • Firefox
    • Firefox for Android
    • SeaMonkey

Thunderbird Add-ons

  • Extensions
    • Featured
    • Most Popular
    • Top Rated
    • Appearance and Customization
    • Calendar and Date/Time
    • Chat and IM
    • Contacts
    • Folders and Filters
    • Import/Export
    • Language Support
    • Message Composition
    • Message and News Reading
    • Miscellaneous
    • Privacy and Security
    • Tags
  • Themes
    • Most Popular
    • Top Rated
    • Newest
    • Abstract
    • Causes
    • Fashion
    • Film and TV
    • Holiday
    • Music
    • Nature
    • Other
    • Scenery
    • Seasonal
    • Solid
    • Sports
    • Websites
    Want more customization? Try Complete Themes
  • Collections
    • Featured
    • Collections I've Made
    • My Favorite Add-ons
  • More…
    • Dictionaries & Language Packs
    • Search Tools
    • Developer Hub

Welcome to Thunderbird Add-ons.

Add extra features and styles to make Thunderbird your own.

Close

On the go?

Check out our Mobile Add-ons site.

Close
Rated 5 out of 5 stars
8 user reviews
21 users
Add to collection
Icon of Gray Polarity

Gray Polarity 1.0

by Benedict

Download Now Download Anyway

« »
  • Add-on screenshot #1
  • Add-on screenshot #2
Close
» «
  • Version 1.0 Info
  • Last Updated: July 27, 2019
  • Released under Creative Commons Attribution-NonCommercial-NoDerivs 3.0

About this Add-on

Version Information

Version 1.0 Released July 27, 2019 347.9 KiB Works with Thunderbird 60.0 and later

  • Source code released under None

Download Now Download Anyway

See complete version history

To create your own collections, you must have a Mozilla Add-ons account.

Create an Add-ons Account

or log in to your current account

close

Report Abuse

  1. If you suspect this add-on violates our policies or has security or privacy issues, please use the form below to describe your concerns. Please do not use this form for any other reason. The process for reporting copyright or trademark infringement is described at this page.

Footer logo
  • get to know add-ons
  • About
  • Blog
  • Developer Hub
  • Forum

Privacy Policy  |  Report Trademark or Copyright Infringement  |  Legal Notices  |  Report Misuse of Thunderbird Trademark  | Report a bug

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