Don't know that one. I just run Trend. There's nothing of value on my computer really so I don't worry much about security.
If re-installing doesn't work, try disabling it for a few minutes and turning it back on. You can also disable the firewall component, leaving the AV running, which will restore your browser back to normal.
Trend is one of the worst firewalls you can run, not because it doesn't work, but because it's too sensitive - OK for work computers where you are very limited in terms of what sites you can access, but not so for home use where you browse sites like Getbig, with pics in avatars and posts hosted in dodgy sites that will set the alarms off with the software.
If you can get it, I suggest you get Nod32 or even AVG, which do a good job and never cause issues like Trend does. If you need a copy, you know where to find it