Firefox launches "fresh" each time as if first installed
For the last couple weeks when Firefox launches it acts as if it has just been installed. For example, my homepage has changed from my.yahoo.com (or google.com) back to the default Mozilla Firefox page. In addition, all of my preferences are lost; i.e. options like save passwords, close multiple tabs without prompting, hide recently bookmarked. My bookmarks DO remain (with or without being signed into sync) but all other options have been changed back to default. I have tried the following:
Refreshing Firefox. Repairing Firefox (remove profile files) Uninstalling Firefox, removing Mozilla program files folder and all Mozilla registry entries, and re-installing. Other browsers work fine, virus scan reveals no malicious programs/rootkits. Windows 10 64b Firefox 49.0.1 All OS updates and plugins are current as far as I can tell.
Any help or suggestions are greatly appreciated!
Geändert am von Bill62
Alle Antworten (8)
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.
Separate Issue; Your System Details shows;
Installed Plug-ins
Shockwave Flash 23.0 r0
Shockwave Flash 20.0 r0
Having more than one version of a program may cause issues.
You must remove the older programs. Then get the current full installer.
Flash: Grab the uninstaller from here: Uninstall Flash Player | Windows Uninstall Flash Player | Mac
Then reinstall the latest version.
Note: Windows users should download the active_x for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).
Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the active_x.
Flash Player Version: 23.0.0.185 Flash Player (Linux) Version 11.2.202.637
https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download.
https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download.
Thanks for the Flash plugin advice, I uninstalled the player and installed current plug in. I don't have advanced system care or browser protection, and unfortunately the problem re-appears after every reboot.
Did you check the link the first line of my message?
Yes, followed all of the Mozilla troubleshooting including removal of preferences.
I suspect something in the Win10 OS may be corrupt as I am having issues now with other browsers.
Perform a System File Check to fix corrupted system files Win 7, 8, 10, Vista: https://support.microsoft.com/en-us/kb/929833 Win XP: https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/system_file_checker.mspx?mfr=true
Already ran the sys file check days earlier. Actually, I went as far today as to do a fresh re-image of Windows 10 (saving no user files) from the MS website. Then re-installed Firefox. To my amazement, exact same problem returned! It does not exhibit this problem on my other Win10 laptop.
Before going any further, get your system checked.