I would like to change tab title for specific site like facebook.com to some custom text. The reason why is because I don't want to see notification(s) count in the tab title, while I am browsing other sites (in other tabs). There is good extension for this for Chrome called Tab Modifier. How can I do this in Firefox? (For current workaround I use pinned tab).
I have not yet found a "Tab Modifier for Firefox". That regex URL Matcher is fantastic!
In Firefox I use Tab Mix Plus, which sadly, is not automatic. You must right-click on the tab, then select 'Rename' from the menu. To activate the tab renaming function, select Tools > Tab Mix Options > Menu > Tab Context Menu, then check 'Rename tab'.
I have also used 'Rename Tab Title'. Advantage: You can change the tab title by pressing Ctl-e.
You might want to try both while you wait for Syl to write "Tab Modifier for Firefox"... if only!
Tab retitle is the only FF addon I found to rename rewriting pages. You can assign a custom shortcut. Will only rename the active tab.
You can rename the tab itself with the option to display the current page name as well as the custom text.
You can separately rename "exact match" the URL (including # page positions) so that whenever that url is loaded in any tab your custom title is applied.
If you bookmark a retitled tab, FF saves the custom title as the bookmark name. The Tab Retitle dialog box then shows the bookmark name as an option. 1 click to re-apply it if all else fails.
A combination of both seems to work - tab name 1st, exact match second. Persistent between sessions.
It also has regex facility although I haven't tried that.
Here's a port of version 0.21 to firefox which works really well: https://github.com/clfer/chrome-tab-modifier/tree/firefox/release/0.21.0