Since last 3 updates, Firefox window cannot be moved on Desktop Windows 7 Pro
Since the last 3 or 4 Updates (keep installing new updates to see if it will fix this), I cannot move the Firefox window around on the Desktop like I have always been able to do--it is "stuck" wherever it is opened. I can resize the window, but I cannot move it.
Other apps, program windows do not do this--only Firefox. I also have Seamonkey and that is movable.
Opaite Mbohovái (2)
You may have a corrupt xulstore.json file. https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved
Did you try to do this via the System menu (Alt+Space)?
Try to set browser.tabs.drawInTitlebar to false on the about:config page to disable displaying the tabs in the title bar.
You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.