The Piriform developers released CCleaner version 5.70.7909, which included Fixed bug, due to which the application, under certain conditions, reset all the settings of the installed add-ons for the Firefox 79 browser.
The problem was announced to Piriform developers yesterday, August 6, 2020. The company writes that due to a bug, CCleaner erased the settings of any extensions when using a Firefox account. Now CCleaner will update automatically for paid users, but free version users will have to download and manually install the update from here…
Journalists of the edition Bleeping computer conducted our own tests and note that CCleaner 5.69.7865 can remove add-on settings in Firefox 79 even if the user is not logged in using a Firefox account (required by some Mozilla services).
Mozilla specialists tellthat the problem was caused by recent changes in the way add-on data is stored in Firefox 79. The changes affected the storage.sync area, which is used to synchronize data between devices that are signed in to a Firefox account.
So, after updating the browser to version 79, when the add-on first requests access to storage.sync, all its data stored in the local user profiles are automatically moved to the new storage-sync2.sqlite file in the user profile folder. The developers explain that a new sqlite file and two companion helper files are created in the profile to store the synced add-on data.
“When you launch Firefox 79 for the first time, the data from the extension store is automatically moved to a new file. CCleaner does not recognize the two new companion files and deletes them, which results in the loss of all extension settings, ”the developers write.
In addition, Bleeping Computer notes that Microsoft Defender has been categorizing the free version of CCleaner since last week. as potential unwanted software… The fact is that the free version of the utility includes special "offers", and many of the applications distributed in this way, of course, are not needed for the work of CCleaner itself.