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I have tried uninstalling and reinstalling Firefox several times. Every time I try to open Firefox I get an error message saying "Close Firefox"," A copy of Firefox is already open. Only one copy of Firefox can be open at a time."

  • 2 个回答
  • 12 人有此问题
  • 9 次查看
  • 最后回复者为 dougdwr

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I uninstall Firefox, then reinstall Firefox, try to open Firefox, and get an error message in a popup box saying,

"Close Firefox"

"A copy of Firefox is already open. Only one copy of Firefox can be open at a time."

I uninstall Firefox, then reinstall Firefox, try to open Firefox, and get an error message in a popup box saying, "Close Firefox" "A copy of Firefox is already open. Only one copy of Firefox can be open at a time."

被采纳的解决方案

Create a new profile as a test to check if your current profile is causing the problems.

See "Basic Troubleshooting: Make a new profile":

If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

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选择的解决方案

Create a new profile as a test to check if your current profile is causing the problems.

See "Basic Troubleshooting: Make a new profile":

If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.

See:

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That solved the problem. Thank you very much!!!!