Any password protected web browser?

I am looking for a web browser, which can be password protected on startup and encrypts all user data - such as cookies, saved logins, browsing history.

As an example - Firefox with a Master password set is not good - because content gets not encrypted.

I do not care about Internet things - such as tracking, etc.

Just use tails?

636173696e6f said:

Just use tails?

Click to expand...

Thanks, but it is not exactly what I looking for.