Twitter (Pin Tab) от Senthil Ponnusamy

NOTE:
We are not affiliated, associated, authorized, endorsed by, or in any way officially connected with "Twitter", or any of its subsidiaries or its affiliates. The name “Twitter” as well as related names, marks, emblems and images are registered trademarks of "Twitter".

Features:
- Zero configuration.
- Single click to access.
- Cross-platform (Windows, Linux, MacOS X).

Pinned Tab Features:
- Pinned Tabs are small
- Pinned Tabs don't have a close button. so you can't accidentally close them.
- You can still close them by right-clicking on them and selecting Close Tab.
- Pinned Tabs notify you with a blue highlight (glow) when they change.
- Links to other websites open in a new tab so that your Pinned Tab doesn't change.
- All of the existing Pinned Tabs (when you close Firefox) will open as Pinned Tabs
when you start Firefox again.
-Additional information about Pinned Tabs http://mzl.la/1BARsAT