firefox quantum netflix back button not working
when using netflix at the end of a movie and or series the netflix backbutton will cease to work the firefox back button will work but not the web site netflix is this a common error that has a fix im using ubuntu 18.04 lts and firefox 61.0 (64 bit)
Opaite Mbohovái (1)
HI, This being a Netflix only issue, you might try opening up history, find a Netflix page, right click and click Forget site. This will clear the history and other related storage for Netflix so you'll have to log back in.
If still a issue as no information was provided when you made the question : Try Firefox Safe Mode to TEST see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:
- Click the menu button
, click Help 
and select Restart with Add-ons Disabled.
If Firefox is not running, you can start Firefox in Safe Mode as follows:
- On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
- On Mac: Hold the option key while starting Firefox.
- On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
(you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.
To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.
When you figure out what's causing your issues, please let us know. It might help others with the same problem.