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Profile preferences reset to "Read Only" after turning it off.

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I cannot start Firefox. It says it is already running. Task Manager does not show any instances running. There is no "parent.lock" file in the "......default" folder. Each time I look at the preferences for the "profile" folder, it shows "read only" is set. I clear it and the next time I look at the preferences "read only" is set.

I have uninstalled and re-installed Firefox but it still resets"read only". Looks like the profile folder has something corrupt in it.

I cannot start Firefox. It says it is already running. Task Manager does not show any instances running. There is no "parent.lock" file in the "......default" folder. Each time I look at the preferences for the "profile" folder, it shows "read only" is set. I clear it and the next time I look at the preferences "read only" is set. I have uninstalled and re-installed Firefox but it still resets"read only". Looks like the profile folder has something corrupt in it.

被選擇的解決方法

Only a check mark in the Read-only box means that a folder or file is Read-only.
Windows doesn't check all the files in a folder so instead displays a green block to indicate that it is not sure.
You always need to look at the files individually.
Easiest to do that is to make the Attributes visible in "View > Details" mode: Choose Details in Windows Explorer.


A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

從原來的回覆中察看解決方案 👍 0

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選擇的解決方法

Only a check mark in the Read-only box means that a folder or file is Read-only.
Windows doesn't check all the files in a folder so instead displays a green block to indicate that it is not sure.
You always need to look at the files individually.
Easiest to do that is to make the Attributes visible in "View > Details" mode: Choose Details in Windows Explorer.


A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.

See:

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Thanks for the suggestions.

I found that the error was in an .ini file that pointed to the wrong profile. After correcting that, all appears to be working.

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I have a similar issue. I had to reload windows. Before the reload I cut my profile folder out of the userdata folder and pasted it into a folder on my external hard drive. After I re installed Firefox 7 I shutdown firefox by going to the file button on the top left corner and hit the exit button. I went to my new profile and deleted in and replaced it with the one I saved. Now I get the message that Firefox is still running. I find no Parent.lock file nor do I see any firefox process in the task manager. What do I have to do to to force the browser to close?