How can I get the menu bar in firefox?
I have ubuntu installed on my mac with VirutalBox. Firefox is installed and I want to clear the cache of Firefox. I don't find any menu bar, how can I do that ?
there's something wrong from your os installation. Canonical has facilitated Firefox with Ubuntu menu bar on top of desktop like OS X and it can be marked with ubuntu originally menu bar extension in Frefox's plugins.
For alternative, you can use Ubuntu Tweak which you can get from add this ppa
then update the system and the Ubuntu Tweak will be appear immidiatelly on your USC.
Press Ctrl+Shift+Del to open-up cleaning dialogue.
To check what's in cache: about:cache
For further cleaning on Ubuntu install "BleachBit".