Tor Browser 12.0 update duplicated top "~/.torbrowser" folder; caused icon issue
Using Linux Mint 20.1 Cinnamon Not sure if this was a bug or if anyone besides me saw the problem. I've used same top level .torbrowser folder (in Home) for all TBB updates for couple years. Never a problem updating in the existing .torbrowser folder & no problem with its panel icon.
After updating to 12.0, the panel icon for TBB was some Firefox - not the purple bullseye. Always have used updates setting: "Check for updates but let you choose to install them." TBB automatically notified of an update (12.0). I clicked the update button. It downloaded OK & prompted to restart("click here"). Started back up - showing a Firefox icon, not a purple bullseye.
Looked at start-tor-browser.desktop - for Icon it had:
Icon=web-browser
I didn't realize why that (apparently) changed. Quick / temp fix, just entered the correct path to TBB default icons. Worked until update 12.0.1 - again TBB showed a Firefox icon on the panel.
Realized the 12.0 update had added a duplicate ".torbrowser" folder. I did zero activity in any of TBB's folders before or after the 12.0 update caused the icon switch. Very unlikely I caused this problem. It now showed ~/.torbrowser/.torbrowser/tor-browser_en-US/Browser...
TBB still started & ran OK, but icon kept changing. After eliminating the 2nd ".torbrowser" folder, the panel icon is fine & the desktop file self corrected the Icon= path.