Why auto update ?
How can i stop my firefox browser auto update or can I restore it ?
Additional System Details
- User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:70.0) Gecko/20100101 Firefox/70.0
Firefox updates automatically to keep your computer safe and secure. It should not be stopped.
One possibility is that Firefox created a new profile -- without your accumulated Firefox data -- and you need to switch profiles or copy some files from the old folder to the new one. That is a data issue, not a program files issue.
Do you still have Firefox 69 installed alongside Firefox 70? If so, don't remove either version of Firefox yet. Please see the note at the end first.
You can "migrate" your existing data (Firefox profile folder) from your Firefox 69 installation to your Firefox 70 installation. That should work smoothly, although it wouldn't hurt to make a backup just in case.
To switch a profile over to Firefox 70 (after this Firefox 69 won't want to use it):
(A) Start Firefox 70
(B) Inside Firefox, type or paste about:profiles in the address bar and press Enter/Return to load it.
This page should list at least two profiles and could list many. (Each profile has two folders and one or more buttons. Do not use any Remove buttons!)
The profile that Firefox 70 is currently using will have this:
This is the profile in use and it cannot be deleted.
(C) Find your Firefox 69 profile
You may have one or more other profiles named default or default-longnumber listed on this page? If so, you can check whether it is the one you were using recently by clicking its Launch profile in new browser button.
If it isn't what you want, simply close that new window.
(D) Switch the profile
If it IS what you want, back on the about:profiles page, click the Set as default profile button for that profile so Firefox 70 uses it automatically at the next startup.
At some point, you can remove Firefox 69 using the uninstaller -- make sure you don't let the uninstaller remove Firefox data.
One note about Microsoft Office: if you have the Office suite installed, you should be cautious in uninstalling Firefox 69 if it's your default browser. Always change your default browser to Internet Explorer before removing a Firefox installation when the new install is likely to go into a different folder.