For those who don't know or are addicted to browser extensions you need to be careful because many browser add on are dangerous and they can steal data and keys from your PC, the latest dangerous extension is Ledger chrome extension which is fake, this add on does nothing than steal your backup recovery phrase
The source is right below
https://nulltx.com/fake-ledger-chrome-extension-causes-major-problems/amp/These kind of information will be more available on beginners section and also there are some guides to avoid these add on extensions.
Before adding any new add on take some time to explore it and even how many downloads and ratings can give an idea about their legitimacy.