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my dock disappears when firefox browser (latest version) is opened all other programs dont do this. Imac less than one year old version 10.8.5

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after updating recently to the latest version of firefox my dock is vanishing when I open the browser. I have to click on the bare desktop and the dock reappears. it does not happen with any other application. I checked my dock preferences and nothing there makes any difference if changed.

after updating recently to the latest version of firefox my dock is vanishing when I open the browser. I have to click on the bare desktop and the dock reappears. it does not happen with any other application. I checked my dock preferences and nothing there makes any difference if changed.

Chosen solution

  • Is the application in full screen? This causes the dock to disappear.
  • Also, is a shortcut in the application set to COMMAND+OPTION+D? That is the Mac OS shortcut to hide the dock
  • The new Firefox has also shown better performance in Mac OS 10.9 Maverciks. Download it here {Opens the OSX Mavericks in the MacApp Store}
  • Restart your Mac. It is good to restart it every few days or it starts acting up. Try setting a schedule so that it restarts say, every Sunday night at 11 pm.
  • Finally, send a screenshot! It really helps! Press COMMAND+SHIFT+4 to change your mouse pointer to a crosshair, then drag it from corner to corner. The screenshot will appear on the desktop.

Thanks! Hope I can solve your problem!

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Suluhisho teule

  • Is the application in full screen? This causes the dock to disappear.
  • Also, is a shortcut in the application set to COMMAND+OPTION+D? That is the Mac OS shortcut to hide the dock
  • The new Firefox has also shown better performance in Mac OS 10.9 Maverciks. Download it here {Opens the OSX Mavericks in the MacApp Store}
  • Restart your Mac. It is good to restart it every few days or it starts acting up. Try setting a schedule so that it restarts say, every Sunday night at 11 pm.
  • Finally, send a screenshot! It really helps! Press COMMAND+SHIFT+4 to change your mouse pointer to a crosshair, then drag it from corner to corner. The screenshot will appear on the desktop.

Thanks! Hope I can solve your problem!

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Jackson, Thank you kindly for your help. BTW The application was not in full screen. I tried the Mavericks download but as it was going to be a very very long download, I decided to restart the Imac instead and it has solved the issue. I really appreciate the options you suggested as I am not a power user and like things simple. In a way I wish I never had to change computers or update software but I know that leaves me vulnerable to hackers so I grudgingly comply. All the best!