It should be possible to pin a tab to ALL WINDOWS ! : r/firefox
How to Pin Tabs in Firefox & Troubleshoot
Active Pinned Tab – Get this Extension for 🦊 Firefox (en-US)
How to Pin and Unpin Tabs in Chrome and Firefox with a Keyboard Shortcut
Change look & feel of Firefox pinned tabs
How to Pin Tabs in Firefox & Troubleshoot
How To Pin A Tab In Firefox
How to Pin Tabs in Firefox & Troubleshoot
Pin Unpin Tab – Get this Extension for 🦊 Firefox (en-US)
Firefox 67: "Pin Tab" option added to Page Actions Menu
Sticky Pinned Tabs – Get this Extension for 🦊 Firefox (en-US)
Make Firefox remember pinned tabs when it does not - gHacks Tech News
How to Pin a Tab in Google Chrome
Anyway to to hide the little "pin icon" below the pinned tabs? : r/firefox
Tab Sidebar – Get this Extension for 🦊 Firefox (en-US)
Change look & feel of Firefox pinned tabs
Firefox View Doesn't Feel Like a Feature, Mozilla. It Feels Like a Nag - OMG! Ubuntu!
Pinned Webpages on New Tabs screen | Firefox for Android Beta Support Forum | Mozilla Support
Mozilla Firefox Extension To Pin Tabs
Restore Pinned Tabs From Multiple Closed Windows In Firefox
Prevent all pinned tabs from loading on start | Firefox Support Forum | Mozilla Support
Keyboard Shortcut to Pin or UnPin Tab in Firefox
Pinned tabs show part of the title and got wider (version 72.0.1) | Firefox Support Forum | Mozilla Support
Firefox 36 arrives, allows pinned tabs to be synced, implements full HTTP/2 protocol support | BetaNews
Pinned Tabs - keep favorite websites open and just a click away | Firefox Help
How to Pin and Unpin Tabs in Chrome and Firefox with a Keyboard Shortcut
