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how to clear online stored Firefox sync data, do to an syncing of old data.

the other day my Samsung Galaxy S21+ died on me so I was forced to re-startup my old Galaxy S10+.. and I tried to sync the my new data on my Desktop and Firefox cloud to my phone...

BUT! it synced my old data a year old data from my phone to my desktop... destroying all my changes over the past year.. THANK YOU BACKUPS! saved the day... Firefox account need the ability to clear the stored Firefox data in the cloud to prevent this from happening again.. and I found similar questions that pointed to deleting my whole account and starting fresh.. THAT IS AN INSANE IDEA... no thx.. I have too much to lose...

please consider this a feature update or request..

the other day my Samsung Galaxy S21+ died on me so I was forced to re-startup my old Galaxy S10+.. and I tried to sync the my new data on my Desktop and Firefox cloud to my phone... BUT! it synced my old data a year old data from my phone to my desktop... destroying all my changes over the past year.. THANK YOU BACKUPS! saved the day... Firefox account need the ability to clear the stored Firefox data in the cloud to prevent this from happening again.. and I found similar questions that pointed to deleting my whole account and starting fresh.. THAT IS AN INSANE IDEA... no thx.. I have too much to lose... please consider this a feature update or request..

Wšě wotmołwy (3)

Hi Melchior, Sync is a data transfer service. It is not a storage service. How do I set up Sync on my computer?

It's a good idea to regularly backup your Profile. Back up and restore information in Firefox profiles

so two or more devices have to be set to sync at the same time for it to work right? why did it overwrite my new data with old junk data...?

I regularly backup my data at least twice a month or more..