It is OK, it is bad at ad blocking, but I think that is acceptable for now... Malwarebytes is an antivirus, an I think It should be treated as one:
Malwarebytes please focus efficiency(low PC resources consumption) and security(because this is what this has been installed for.) and also remove what is not needed, keep it at minimum, I do not need a graph which does not fit in the vertical rectangular tab bar for extensions content from Firefox. just add an link for statistics so it drives me to an web page with all the info, and advanced configurations of the extension.