Clearing "Site Preferences" cleared the previously set individual site zoom levels.

I suggest keeping the default zoom setting at 100%, but zoom out one step on the Settings page using the menu or keyboard shortcut (not changing the setting back and forth). Is that still working?

In another thread you said --

I'm set on 'never remember history'.

This setting triggers automatic private browsing and Firefox will not retain or apply site-specific settings in the usual way in this mode.

I am stuck on the fire fox site and can not get to my home screen period. Not able to get my touch screen to slide off this horrible page , only can navigate within the fire fox home and help pages. I was trying to get the page set up in print selection to make 1 page and not two pages by setting the Zoom. I am now asking for assistance to get back to the home screen so that I might be able to use my computer

I can not get into my laptop or downloads or anything why!

I am stuck on the fire fox site and can not get to my home screen period.

If the toolbars at the top of the Firefox window are not visible, try these keyboard methods to exit out of full screen view and show the normal toolbars:

• Esc key
• F11 key

If that doesn't work, if you are running Windows, you can try these:

• hold down the "Windows" key on the keyboard and tap the D key ("Show Desktop")
• press Alt+F4 to close the current window
• hold down the Alt key and press and release the Tab key -- Windows should show the application selector