CE/Web Chaver is good because it will tell your chaver if u uninstall it. Thoughit could be there are ways around that. There are ways around everything if you are motivated enough. The best we can do is use these tools to act as a reminder. It is a lot easier to stop yourself from doing an issur when it takes work to do whatever it is you are doing. We need to do our hishtadlus to minimize the nisayon.
You should have both a filter and a chaver and know yourself etc as pointed out above. I would also recommend adblockplus, flashblock, and if you can handle it imglikeopera.