> I doubt firefox will ever focus on security. The security mechanisms we are talking about require breaking compatibility or performance. This isn't the stuf

> I doubt firefox will ever focus on security. The security mechanisms we are talking about require breaking compatibility or performance. This isn't the stuff one rearranges deck chairs for. This is just wrong. For example, major changes have been made to the internal architecture over the last couple of years to support process-per-site "site isolation". See https://bug1523072.bmoattachments.org/attachment.cgi?id=9061036 https://bug1523072.bmoattachments.org/attachment.cgi?id=9061... for the new architecture. It's true that Firefox is still behind Chrome in this area, but there is a lot of effort going into it.