Reliable extensions for Mozilla Thunderbird — free, maintained, and supported by donations. Built to make everyday email faster, cleaner, and easier.
Small, focused add-ons designed to solve real Thunderbird workflow problems.
Pin folder tabs to a persistent toolbar so your most important folders are always one click away.
Insert reusable text templates in compose windows with toolbar buttons and keyboard shortcuts.
Keyboard-first quick folder switch, move, and copy for users who manage email fast.
Automatically switch compose spellcheck dictionaries using fast Markov-style language detection.
Focused extensions with clear purpose, clean behavior, and no unnecessary distractions.
The extensions are designed to help your workflow, not interrupt it.
No analytics scripts or hidden tracking inside the extensions.
Updates and fixes are planned as Thunderbird evolves.
Use them for free. Support development only if they help you.
These extensions are free to use and will remain so. If they save you time or improve your workflow, consider supporting the project. Your donation helps keep everything updated and improving.
Clear answers before you install.
Yes. The extensions are free to use. Donations are optional and help support development.
No. These are independent extensions made for Mozilla Thunderbird.
No. The goal is useful functionality without ads, tracking, or unnecessary distractions.
No. The extensions are free to use, but the source code is not publicly distributed.