Firefox, similar to every other fashionable browser, helps the saving of authentication data to enhance the sign-in course of on web sites. Instead of getting to enter the passwords manually every time they’re requested, Firefox would offer the password when wanted.
Firefox saves the information in the file logins.json in the Firefox profile folder.
Reports counsel that Avast and AVG safety purposes trigger the problem for Firefox customers. It seems that the software program applications one way or the other corrupt the login.json file in order that Firefox can not read it anymore.
It is feasible that different safety applications might trigger the problem as properly.
Good news is that the passwords are nonetheless there and that affected customers ought to have the ability to get better them on their units. Bad news is that that is solely a brief answer because the recordsdata can be corrupted once more until Avast updates its software program applications to handle the problem.
In different phrases: the problem shouldn’t be attributable to Firefox, it’s attributable to third-party software program that corrupts the logins file of the Firefox internet browser.
Update 2: AVG offered the next assertion:
Some AVG customers lately might have been unable to entry their browser passwords when utilizing Firefox. This solely utilized to those that bought the AVG Password Protection function and the problem was fastened right this moment at 12:20pm. Avast customers weren’t affected. This occurred as a result of Firefox up to date its certificates for signal in to the brand new model of the browser and AVG didn’t have this new certificates marked in its database as trusted.
The downside was fastened right this moment for AVG customers at 12:20 CET and an replace was distributed instantly to our person base. AVG checks for updates each 4 hours, and customers can even manually replace their software program beneath their AVG settings -> Update. Users with product model VPS 190614-02 and newer is not going to expertise any points.
For these affected, Firefox has not deleted the password file however can have renamed it to from ‘logins.json’ to one thing like ‘logins.json.corrupt’ (or ‘logins.json-1.corrupt’, ‘logins.json-2.corrupt’, and so forth.). This means the passwords will not be lost, however the person might want to rename the file again to ‘logins.json’. We advocate the person does a backup of those ‘logins.json’ recordsdata, for instance to a different folder, earlier than renaming them. The password file is often saved in the Firefox profile listing: c:Users
We apologize for any inconvenience this will likely have brought about to the affected customers.
Update three: Mozilla released an add-on to revive the passwords on affected methods.
Fixing the lost password difficulty
- Open the Firefox internet browser.
- Load about:assist.
- Click on the “open folder” hyperlink close to the highest of the web page that opens; this opens the profile folder.
- Close Firefox.
- Check if you see a file referred to as logins.json.corrupt.
- If you do, rename the file to logins.json to repair it.
- Start Firefox. The passwords needs to be obtainable once more.
The repair is a brief one because the logins file will corrupt once more when you restart the system.
One choice to repair the problem on the person’s finish could be to exclude Firefox or the file from scans. Other than that, you both have to attend for AVG/Avast to difficulty a patch that addresses the issue or take away the software program from the system.
Some Firefox customers fastened the problem by rolling again to Firefox 67.zero.1; AVG/Avast software program seems to play positive with that model of the browser.
The incident shouldn’t be the primary time that AVG or Avast software program brought about points in Firefox. When Firefox 61 was launched in mid 2018, the browser all of the sudden threw Secure Connection Failed errors when making an attempt to connect with HTTPS websites. Then in February 2019, customers would get SEC_ERROR_UNKNOWN_ISSUER when connecting to safe websites. Turned out that the problems had been attributable to the safety software program.