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Dino Game
Slack - Quick Access
Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Open Google Chat
Adds an icon on the spaces toolbar to quickly open Google Chat.
Not affiliated with Google.
Inoreader Thunderbird Add-on
A simple add-on with a button in the Spaces toolbar.
Requires an account a inoreader.com
Toggle Dark Reader
Daily Reports
This plugin lets you store different profiles with CC, To, Subject and Signature values. Perfect if you need to send emails with similar details often.
SpaceApper
Have I Been Pwned? - Easy Reach
An extension for Thunderbird that allows you to access Have I Been Pwned.
Minimize on startup
10ten Japanese Reader (Rikaichamp)
Look up Japanese words with the hover of a mouse.
After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.
Telegram - Quick Access
Quick Access to Telegram Web in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Bard - Quick Access
Quick Access to Google Bard (new name Gemini) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Google Calendar - Quick Access
Quick Access to Google Calendar in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Snakes by Bluemods
Classic Snakes game at your fingertips.
Snakes by Bluemods is a free-to-play single-player classics arcade game designed and developed by Justin Gates at Bluemods.com. The game allows the players to maneuver a snake made up of tiny squares.
Arcus
Diola-Fogny spell checker
Requires Restart
Diola-Fogny spell checker that recognizes about 19000 of the most common words.
Diola-Kasa spell checker
Requires Restart
Diola-Kasa spell checker that recognizes more than 16,000 common words.
Oromo spellcheck
Mari spellchecker dictionary
Mari dictionary for spell-checking in Firefox and Thunderbird. «Орфографический словарь марийского языка»
Simple English Dictionary
Requires Restart
A Simple English spellchecker for the simple.wikipedia.org
To create your own collections, you must have a Mozilla Add-ons account.
