Firefox shows upwards on the taskbar but will not maximize when clicking on window

I tried re installation, but when I click the icon it will appear on the taskbar but will not maximize.

It is a more detailed explanation of the above.

Sometimes, a window is "off the screen" somehow. Often, you can force it to appear on the screen by right clicking on the thumbnail image just above the taskbar and choose expand. Does it work?

A possible cause for this is that the file that stores the positions and sizes of window is corrupt.

#1 method: If you can get a zoomed window:

Open the settings folder (AKA Firefox profile) current Firefox help

  • button "3-bar" menu > "?" button > troubleshooting information
  • (menu bar) Help > troubleshooting information
  • type or paste everything: in the address bar and press Enter

In the first table of the page, click on the view file"" button. This should launch a new window that lists the various files and folders in Windows Explorer.

Leave this window open, switch back to Firefox and output, either:

  • "3-bar" menu button > button "power".
  • (menu bar) File > Exit

Pause while Firefox finishing its cleanup, then rename xulstore.json to something like xulstore.old. If you see a file named localstore.rdf, rename this to localstore.old.

Launch Firefox back up again. Windows normally appear again?

#2 method: If you can not get a Firefox window for all:

Close Firefox by right clicking the icon in the taskbar > close all windows.

Using the Run dialog box (windows key + R) or the search for the start bar menu (or Windows 8.1 may bar charms bar research?) type or paste the following and press ENTER to drill down to the profiles folder:

%APPDATA%\Mozilla\Firefox\Profiles

Here you can see a folder - in this case, double-click that - or more than one case - in this case, double-click on in what looks like the most recently updated.

Scroll down and rename xulstore.json to something like xulstore.old. If you see a file named localstore.rdf, rename this to localstore.old.

Launch Firefox back up again. Windows normally appear again?

Tags: Firefox

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