I have two monitors and Firefox will not come on the screen.

When I try to open Firefox it will not load on each screen. Looks like he's trying to go to the secondary screen, but is not visible. The OS is Windows 7 Home first Service Pack 1. Firefox version 37.0.1
Thanks for your help.
Jerry

You get a sticker or other indication on the Windows task bar that there is a window of Firefox "somewhere", but it is not visible anywhere?

If there is a tile (or a title of the window above the Firefox button in the task bar):

The Firefox window sometimes opens off screen. If you have a multiple monitor configuration, make sure that both monitors are on. Other users have reported that sometimes Firefox acts strangely while the second monitor is turned off. You mentioned that both monitors are on in your case.

In all other cases: you can often force the Firefox window is displayed on the screen by double 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 as well.

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 search from the start menu (bar (or, in Windows 8 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 as well.

Launch Firefox back up again. Windows normally appear again?

Tags: Firefox

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