Why did the new Ffox install in \Apps\Data\ instead of \Program Files\? what a mess.
Using XP, I had reservations about upgrading, but Ffox Help refused to allow questions about upgrading, until I did :-( Instead of replacing the existing installation, it added a second, messing up my start menu, which still runs the older version. But the new version has disabled without explanation or advice, about half of my extensions/add-ons/plug-ins, including AVG, my security program. In addition, the Add-ons Mgr >> More links just take me stupidly to the AVG website with no clue what the problem is, nor how to describe my compatibility need to vendor. (Mozilla probably knows the problem with each estranged vendor, but did not choose to pass that on in the error message.) In addition, the Ffox page that brought me (Add-ons disabled by upgrade) to 'ask a question', indicated (by offering to install 3.6), that all of this hassle was known before I was forced into it, and I should have known by telepathy that 7.01 was all an avoidable mistake if Mozilla had allowed my question without requiring me to install 7 first ;-( {I know you are sorry. Please open the upgrade problems page if you value your reputation for intelligence.}
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To answer your question about Firefox installing in the "%USERPROFILE%\Local Settings\Application Data\" folder, this is probably because you downloaded the installer and ran it without administrator privileges.
An AVG extension? AVG has to update its add-on to tell Firefox that it actually is compatible with Firefox 7. This issue isn't actually Mozilla's problem if it cannot update from the Mozilla Add-ons website, rather, the vendor's responsibility to update it. You may want to check for any AVG updates, this should fix your problem.
Thank you for your prompt reply. I am a little confused. I thought it was not supposed to install without Admin priv., which should have required Admin. or not installed at all. (sigh) The whole Add-on, Extension, Plug-in thing seems a bit complex, but I now gather that Add-ons are adverts for additional software, & there is an Add-on Manager that also handles Extensions & plug-ins (difference?). Half of my dozen extensions are disabled, and won't update. A third of my 2 dozen plug-ins are up-to-date, 2 thirds requiring messy research to even determine if they are supported any more (?). Would it help for me to uninstall either 7 or 3.6 or both under Admin user login? And since I have doubts of the usefulness of many of these add-ons, will I have to do all the Mozilla research before I uninstall 7, to avoid getting locked out of the forum again? (or is there a way around that website problem? or perhaps leave 7 installed, but for AVG safety reasons just use the 3.6 for now?) Is there a comparison list of 3.6 & 7 features I have not been able to find? (Perhaps I can just uninstall 7 and forget it for now.)
Firefox installs to 3 hard drive locations:
- \Program Files\
- \Documents & Settings\App Data\Mozilla\Firefox\Profiles\ = Profile with Add-ons and personal data
- \Documents & Settings\Local Settings\App Data\Mozilla\Firefox\Profiles\ = Cache, Fast Load files, and ancillary Profile files like Offline Cache, startup cache, and anti-phishing database
If you update Firefox then the update files are saved in the updates\0 folder in Local Settings, but you need write access to the Firefox program folder (C:\Program Files\Mozilla Firefox\) to actually install the update.
C:\Documents and Settings\<user>\Local Settings\Application Data\Mozilla\Firefox\Mozilla Firefox\updates (%USERPROFILE%\Local Settings\Application Data\Mozilla\Firefox\Mozilla Firefox)