When i disable the setting "Show Tabs menu" and try to use the drop down button in the groups button i get the following error/popup and after which Firefox is unresponsive/hangs.
Firefox doesn't know how to open this address, because the protocol (tabgroupsmenu) isn't associated with any program.
To correct this i had to reset the setting via "about:config". Note that i tried versions 0.8.2.5 and the unreviewed 0.8.2.6. Firefox version 6.0.2.
When i disable the setting "Show Tabs menu" and try to use the drop down button in the groups button i get the following error/popup and after which Firefox is unresponsive/hangs.
To correct this i had to reset the setting via "about:config". Note that i tried versions 0.8.2.5 and the unreviewed 0.8.2.6. Firefox version 6.0.2.