1Password TeamHi dragon1
I appreciate you taking the time to read through our security white paper, and I understand that you may have some concerns about how other browser extensions may interact with 1Password in the browser. Rest assured that it was carefully designed with your security in mind and strongly encourage you to read our article About the security of 1Password in your browser
With that being said it's important to keep in mind that any browser extension with full access is able to view a password after it was already filled, regardless of the method used for filling. So you should only grant full access to browser extensions that you know and fully trust since the browser contains a lot of sensitive data and all of your browsing information. If you do require use of such extensions, I recommend installing them in a browser profile that is separate from the one where 1Password is set up.
If you're using Safari as your browser, you can also limit your use of browser extension to ones that don't require full access. For example, there are ad blockers that use Safari's content filter API and do not see or modify web content in the browser.
Let me know if you have any questions and I'll be happy to address them.
