@samyotix While I agree that there should an UI config knob exist for this feature to be disabled for those who don't want it, you may search the web for `firefox disable tab groups` and find plenty of pages that provide howtos on this.
For me it's these basic specs:Have them pinned at left side of the tab strip similar to pinned tabs (don't care of accessing them from elsewhere, I'm good with tab strip only)Have pinned tab groups distinguished from pinned tabs in some way (maybe a ...