Improve tabbed browsing experiences of Firefox
Requirements: Mozilla Firefox
Tabextensions is a Browser software developed by SHIMODA Hiroshi. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Tabextensions:
EditByBSEditor: Tabextensions 3, aka TBE3 is an addon which improves tabbed browsing experiences of Firefox, with various unique features. For example:
Close Multiple Tabs by one action (ex. "Close Right Tabs", "Close Left Tabs", and so on.)
Show a thumbnail, a progress meter, in each tab.
MOVE the tab bar from top to left, right, or bottom. The tab bar can be changed from horizontal to vertical.
Show tabs with indent like a tree.
Open "View Page Source" and "View Selection Source" in tab.
...and so on.
This provides only unique features of old TBE2. You can use each features separately, because, actually the TBE3 is a meta package based on some tiny addons. See the list of addons in the TBE3.
By the way, TBE3 doesn't have some features of TBE2, for example, "colored tabs", "Lock/unlock tabs", "session management", etc. If you require them, you should use other additional extensions or the Tab Mix Plus.