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I have Firefox 43.0.4. When I try to save Pop-up exceptions, they are gone from the list the next time I restart Firefox. Any ideas?

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  • Last reply by FredMcD

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Version 43.0.4. Windows Vista SP2, Other functions of Firefox seem ok. Right now, I must turn off the Pop-up blocker entirely or keep clicking the "allow" at the top of various webpages where they are required.

Version 43.0.4. Windows Vista SP2, Other functions of Firefox seem ok. Right now, I must turn off the Pop-up blocker entirely or keep clicking the "allow" at the top of various webpages where they are required.

Chosen solution

In case you use "Clear history when Firefox closes" or otherwise clear history.

  • do not clear the Site Preferences
  • Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.
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https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

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Thanks for your suggestion. None of the software mentioned was installed on my computer. I suspected my own Firefox settings might be the cause and compared another computer that was saving the pop-up exception list. It turns out under Options/Privacy/"Clear History when Firefox closes" (checked)/Settings box, I unchecked the two "data" boxes: "Offline Web Data" & "Site Preferences". The pop-up exceptions list now appears to be saved when Firefox is closed.

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Chosen Solution

In case you use "Clear history when Firefox closes" or otherwise clear history.

  • do not clear the Site Preferences
  • Clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, passwords, and other website specific data.
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