The title bar , minimize, and close window disappear. I found some help but it does not work for very long.
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Your Firefox might be stuck in full screen mode. You can use the F11 function key to switch between full screen and normal display modes. If you do not have an F11 key, sliding the mouse pointer to the top of the screen and right-clicking should display a short menu to exit full screen mode.
Is that it?
F11 switches the screen but it goes into an auto hide mode. If i do F11 again, I don't see anything above the word "Bookmarks". Menus gone, link bar (Favorite) gone, url window gone. I can't pull the window down because there is nothing for the pointer to grab on to.
I don't know what causes it to happen. I start out fine, then the title disappears. When is working properly I can click on the title bar and go full screen.
If happens again I will take a snapshot
You can check for problems with the localstore.rdf file.
You can also try to disable hardware acceleration in Firefox.
When this happens, if you press Ctrl+n to open a new window, does it look normal or does it have the same problem? Or another technique, if you press Ctrl+t to open a blank tab in the window, then drag the first tab out so Firefox places it in its own window, is that one normal?
The developers have been tweaking how pop-up windows work and how scripts can use full screen. I wonder whether you are visiting a site that has found a way to lop off the window frame that normally runs around the contents? That should be blocked...
Ctrl - t duplicates whatever mode it is in. If title bar is there I get two windows with title bar. If there is NO title bar Ctrl - t gives me two windows without title bars. If I open 4 windows , I can close all 4 with one click on "file>exit" .
I know this because my replies got closed out.
Ctrl - n does all the same things
Does minimizing to the task bar and restoring that window bring back all its content?
Try do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox.
Download a fresh Firefox copy and save the file to the desktop.
Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.
If you keep having problems then also create a new profile.
I backed up bookmarks then reset firefox (In help > trouble shooting) everything was OK for awhile ( the title bar was there ) Then out of the blue the title bar disappeared again but I could still pull the window with the title on it ( I could not pull it down before). Now it's back to the same problem ( no title bar and I can't pull the window down).
Next, is the full reinstall. It's the same version I am using now. Let's see what happens