in the middle of updating, my computer crashed. i restarted firefox and it was 19 instead of 18. then when i checked my add-ons. everything was disabled and most were gone!... then i went to plug-ins for an update and it doesn't even run anymore. somehow it did save my old firefox in a folder on my desktop but i don't know how to work it.
i've always updated my firefox and never had a problem. but now nothing works and i need everything to be restored.
hello, your question conatins a few issues...
The reason you went from 17.0.* to 19.0 is likely because you were on the Beta channel due to using a Beta build at some point. A easy way to get back on the Release channel is to download and install 18.0.2.
thank you very much. another question is that my idm and norton toolbar both won't work on my add-ons. if i do restore it from my old firefox folder and those still don't work then what should i do?
run symantec live update in order to obtain the latest version of the toolbar that is compatible with firefox 18: https://community.norton.com/t5/Norton-Toolbar-Nor
i don't know about the compatibility of idm, but you could use a different addon like DownThemAll! which will work well in current versions of firefox.
Norton only supports Trelease builds and not Test builds like Beta. Though if you did install Firefox 18.0.2 you probably have to do Norton live update until it works.
I somehow ended up with a different version of firefox also, and tried the help troubleshooting thing, and it isnt working. It tells you to TRANSFER the old file, but not exactly HOW to do it. Im completely disgusted and about to quit firefox!
It is possible that there is a problem with the file(s) that store the extensions registry.
Delete the extensions.* files (e.g. extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.
New files will be created when required.
See "Corrupt extension files":
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left end side of the Search Bar ("Find Updates" button in older Firefox versions) to check if there is a compatibility update available.
If this hasn't helped then also delete the addons.sqlite file.