You're not just browsing BBC and your bank sites though, you're browsing here too, as well as countless other sites. Anyone that says they only browse two types of websites online is lying. How about stop risking online safety and actually stay up to date? Browser addons do not offer the same level of security as a current patched up application. If you believe they do then you're not really as clued up as you'd assume, this is a fact not just an opinion, I have no issue with pulling people up on things that are outright I have no issue with pulling people up on things that just don't make any logical sense.
Your call.... but you are on a forum where people are highly technical and in the know about security and technology. It is only normal for people to raise questions as to why this behaviour is happening.because it is not the norm and is somewhat dubious.