Can I delete the browser data i imported from a different search engine?

I imported my browser data,Import browser data - bookmarks, passwords, history, extensions, and auto fill data from another browser - mistakenly. Can this action be undon… (funda okungaphezulu)

I imported my browser data,Import browser data - bookmarks, passwords, history, extensions, and auto fill data from another browser - mistakenly. Can this action be undone?

Thank you

~ Lanae

Open
Firefox Import and export settings