Phone model: Blackshark 2, Android 10 Firefox Nightly 92.0a1 (Build #2015826123) When opening the tabs with between over 60 ~ 70 tabs in potrait screen, the tabs will defaulted to List option despite the setting is set to Grid option. To switch into Grid view correctly, the tab must be opened in potrait mode then rotate the phone to landscape and back into potrait view. However, closing the tabs view and reopen will switched back into List view again. Reinstall or restarting the app while in Grid setting doesn't work. Landscape screen mode can switch between and keep according option chosen in the setting correctly.