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my firefox opens up as an icon on the task bar at the bottom of my screen but when I try to maximize the screen it disappears to the right

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I am trying to open up my Mozilla Firefox but I'm having a problem. When I try to open it up the Mozilla icon shows up at the bottom of the screen in the task bar. If I put my pointer on the icon at the bottom of the screen it shows the minimized screen in a little box above the icon. However, when I try to maximize the screen so that I can work on it a faded version of the web page shows up as a faded box that travels from the bottom of the screen near the icon on the task bar over to the right-hand side of my screen where the faded version then disappears off the right-hand side of the screen. No matter what I have tried has restored the webpage to where I can use it. It just remains in the minimized version. I have tried opening the webpage and then closing it through the task manager in case the program was hung up somehow and I have tried uninstalling the program and then opening up my internet explorer and downloading the program again and it still hasn't helped. Can anyone help me fix this problem?

I am trying to open up my Mozilla Firefox but I'm having a problem. When I try to open it up the Mozilla icon shows up at the bottom of the screen in the task bar. If I put my pointer on the icon at the bottom of the screen it shows the minimized screen in a little box above the icon. However, when I try to maximize the screen so that I can work on it a faded version of the web page shows up as a faded box that travels from the bottom of the screen near the icon on the task bar over to the right-hand side of my screen where the faded version then disappears off the right-hand side of the screen. No matter what I have tried has restored the webpage to where I can use it. It just remains in the minimized version. I have tried opening the webpage and then closing it through the task manager in case the program was hung up somehow and I have tried uninstalling the program and then opening up my internet explorer and downloading the program again and it still hasn't helped. Can anyone help me fix this problem?

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It sounds like your main Firefox window is positioned somewhere outside your visible screen. Try this: hold down the Windows key on your keyboard, and simultaneously press the up arrow key on your keyboard (Win + up). This will hopefully maximize Firefox into the visible workspace.

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Another shortcut for maximizing the currently active window is to press Alt+Spacebar followed by x for maximize.

A past thread on this problem: opens off monitor screen.


Do you have multiple monitors by any chance? If so, can you set the monitor where you want Firefox to "primary"?


If this problem persists -- in other words, if Firefox stops saving the new position of its window(s) correctly between sessions -- the settings file that stores the last window position may be corrupted. You could try removing that file and let Firefox use its default sizing and positioning. Note: this also will default some toolbar customizations.

Here's how:

Open your current Firefox settings (AKA Firefox profile) folder using either

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information

In the first table on the page, click the "Show Folder" button to open a new window showing your currently active settings files.

Leaving that window open, switch back to Firefox and Exit, either:

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

Pause while Firefox finishes its cleanup, then rename localstore.rdf to something like localstore.old

Start Firefox back up again. Is the window visible?