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While I have a Mozilla account, I typically am not signed-in when I use Firefox. I have noticed that when I do sign-in, extensions that I have removed while not signed-in are automatically reinstalled and stay installed when I sign out. Apparently the extensions were installed prior to signing-in sometime in the past; removing the extensions while signed-in seems to remove them for good. As good an idea as this may seem (?), I need this to stop. Any ideas? I am not intentionally backing-up or syncing anything.

Well on May 14th it said in synced all my data on fire fox. I guess because I downloaded what's app and put my telephone number in my computer. Plus this is a school computer. Will that hurt anything.

I have two profiles, one for work and one for my personal in the same account. I need to sync both of my profiles but do not want the information in the two profiles mixed together. I need to sync the information as I have a desktop and a laptop that I use for work, and mobile devices and another laptop for personal matters. If I am on work travel and need to access my personal profile on my laptop (because schlepping two machines is silly!), I want to switch my profile to the personal one. then when I am done I want to switch back to the work profile. How can I do this and is firefox set up to do this?

Firefox account keeps search history even though only bookmark sync is turned on. I logged out from firefox mobile, deleted firefox mobile, reinstalled firefox mobile, relogged in to firefox mobile and I see again the search history. How can I remove permanently the search history and how can I disable permanently search history saving even though only bookmark sync is turned on?

I cannot find the menu item on my mobile device to sync my Firefox account. When I select "menu" it doesn't have that as an option; it only shows me other topics I have used Firefox to search.

Until a few days ago, when I shared tabs from my mobile device to my desktop, it opened in a new tab or tabs in the active window on my desktop. Now all of the shared tabs are opening in their own window. Is there a way to adjust this in Settings?

I have used Firefox as primary browser on my Mac for many years — never Safari.

Until yesterday, I used Safari as the only browser on my iPhone.

I now see all my Safari bookmarks in the iPhone’s new Firefox browser, but not the important open Safari tabs.

How can I sync my iPhone Safari web page tabs to Firefox on both devices, and sync the Mac’s open Firefox web page tabs to iPhone Firefox?