Re:Electron is flash for the desktop (2016)
by SlySherZ on Tuesday April 11, 2017 @04:13PM
(#14092017)
I can confirm for Firefox. Right click the tab -> Pin Tab. It shows up as a symbol only (hides the title) leftmost tab and never goes away.
Here's more info, with images of how it looks like: https://support.mozilla.org/t5/Learn-the-Basics-get-started/...
Probably Firefox also has this.