FBTitle Fix
Whatever page, group, or profile you open on Facebook, the tab title is always just "Facebook". Open 5 tabs and all 5 say "Facebook", no way to tell which is which. Browser history is the same, finding a page you visited earlier becomes a guessing game.
This annoyance is years old. Reporting it to Facebook goes nowhere, so I built an extension instead.
Github: https://github.com/2u841r/FBTitle-Fix
Greasy Fork (Tampermonkey/Violentmonkey): https://greasyfork.org/en/scripts/577789-fbtitle-fix
What it does: reads the page or group name from the page header and sets it as the tab title. History then shows Page Name | Facebook instead of just Facebook. Facebook is a SPA, so the title also updates as you move between pages without reloading.
Facebook changes its markup from time to time, so the name lookup has a 4-level fallback chain. If one selector breaks, the others keep it working. If it still fails someday, open an issue on GitHub.
Is it safe?
Collects nothing, sends nothing anywhere, only runs on facebook.com.
The source code is right there to read.
If you find it useful, a star on GitHub is appreciated.