One should never sync two different browser account profile and as it said it mixed both of them when you synced and now your work computer the IT can see your links and sites now connected to your work computer. You should've make a new Windows account with different Firefox browser settings to prevent profiles from being mixed up. They want one sync because the original remains on the device that it was created on and if you change password everything on sync devices are deleted. Most don't use 2 profiles but one profile that they sync. And Best Practice is to never sync with work computer as IT now has access to your bookmark and sites and probably personally logins as well.

Firefox is normally installed in "C:\Program Files\Mozilla Firefox\" and not in the updates path you posted above. Such a path is used to prepare an update for applying this update and copy it to "C:\Program Files\Mozilla Firefox\".

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What is the location of the Firefox binary when you check this on the about:support page?

• https://support.mozilla.org/en-US/kb/use-troubleshooting-information-page-fix-firefox

Recommendation 1:

"You should've make a new Windows account with different Firefox browser settings"

Do you mean I should create another user section in windows?

Tip 2:

"Firefox is normally installed in "C:\Program Files\Mozilla Firefox\" and not in the updates path you posted above".

This time I tell Firefox to store me in a folder on another hard drive where I have my 2 separate profiles. Hello:

I explained that I use two, one exclusively for work purposes and the other for personal use. Since I have different bookmarks and I'm interested in the cache as well as the history being independent.

In the event that I get to experience the inexplicable error that the contents of both folders are deleted or disappear, is it worth the backups I made to restore them or should I put them right in Drive C where Firefox was installed?

It is worth mentioning that when I do a "More help" export according to a tutorial I read, it travels with the 2 profiles and their respective contents.

Is it enough to replace them with Firefox closed?

• I already made an attempt and it created 2 profiles with different names and without the respective files.

Hello :

If I synchronize the 2 profiles with the same account 'would I keep my 2 profiles?

TY

The screenshot shows that Firefox is installed in the regular location for 64 bit.

• (64-bit Firefox) "C:\Program Files\Mozilla Firefox\"

The folder with the long name is the folder used for updating.

If you connect two profiles to the same Sync account then the result will be that both profile end up with the same data as this will cause data from both profile to get uploaded to the Sync server and merged to all connected devices. You can't keep personal data separated, that is only possible if you use separate Sync accounts. Connecting devices to the same account means that data will be merged.

You can copy certain files with Firefox closed from another profile folder to anther profile folder to transfer personal data. Note that best is to avoid restoring a full profile folder and only restore important files that are safe to restore/transfer.

• https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

• bookmarks and history: places.sqlite
• favicons: favicons.sqlite
• bookmark backups: compressed .jsonlz4 JSON backups in the bookmarkbackups folder
• cookies.sqlite for the Cookies
• formhistory.sqlite for saved autocomplete Form Data
• logins.json (encrypted logins) and key4.db (encryption key and primary password) for logins saved in the Password Manager
• cert9.db for certificates stored in the Certificate Manager
• persdict.dat for words added to the spell checker dictionary
• permissions.sqlite for Permissions and possibly content-prefs.sqlite for other website specific data (Site Preferences)
• sessionstore.jsonlz4 for open tabs and pinned tabs (see also the sessionstore-backups folder)