I recently upgraded my computer to Ubuntu 18.10. I think this may have upgraded my Firefox to 65.0. Now in Firefox I have two new (unwanted) behaviours
when I try to use tab-completion in the sagemath notebook, the browser moves the active element from the cell to the evaluate button.
when I press [backspace] in an empty cell it used to delete the cell and move the cursor to the previous cell. I would use this to delete a series of empty cells. Now it does nothing.
google-chrome is working fine
Is this a new behaviour in firefox, is it an OS/xorg issue or does it involve the sagemath notebook?
