Firefox changes settings almost every sign-on
Almost every time I open Firefox it has changed my screen look, my preferences and my security settings. I'm lucky if my restoring lasts 2 days. For example; this morning I opened Firefox and all appeared to be OK. This is afternoon and Firefox has come up with a dark screen, changed preferences and altered my security settings. I've raised this subject before and I'm really tired of doing this. I favour Firefox because I like the relative independence of it, whereas MS and others seem to pry on everything one does. I also think MS is deceitful in that I cannot get back my MS Office (that I paid for) after a rebuild.
All Replies (2)
You could check that the following preference in about:config is at the default false. Setting it to true can have unpredictable results. privacy.resistFingerprinting
https://support.mozilla.org/en-US/kb/about-config-editor-firefox
Next, try restarting in troubleshoot mode. You could also check for malware.
https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems https://support.mozilla.org/en-US/kb/troubleshoot-issues-related-to-add-ons
If none of that helps, create a new profile.
https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data
Does it still happen in a new profile without signing into sync? An easy way to test a new profile is to install Developer Edition and see if it happens there or refresh your existing profile.
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