What exceptions should I set in avast and COMODO firewall?

[websave]

Are you using CIS or Comodo Firewall? And you should not use both BB's together. It's called overlapping security.

I am using COMODO firewall.

[websave]

Should I use avast BB or COMODO BB? Also, why would COMODO firewall already have proactive protection if it's just a firewall?

[Para-Noid]

All you need to do is "disable" the Comodo "Behavior Blocker" and you will be fine.
Make the exclusions in the avast behavior shield. Comodo has avast on its "on-board" whitelist.
I tried the Comodo "Kiosk" but it slowed down my laptop to a very slow crawl.

To install just the Comodo Firewall follow these instructions to the letter http://www.knightwithapc.com/2011/11/download-comodo-firewall/
The instructions will prevent the install of the Comodo anti-virus. 

Check my signature. 

[websave]

All you need to do is "disable" the Comodo "Behavior Blocker" and you will be fine.
Make the exclusions in the avast behavior shield. Comodo has avast on its "on-board" whitelist.
I tried the Comodo "Kiosk" but it slowed down my laptop to a very slow crawl.

To install just the Comodo Firewall follow these instructions to the letter http://www.knightwithapc.com/2011/11/download-comodo-firewall/
The instructions will prevent the install of the Comodo anti-virus. 

Check my signature. 

Wouldn't COMODO BB be better though? It has a sandbox system and is more complex overall.

[Para-Noid]

Personally I prefer the avast behavior shield as it's plenty strong and the Comodo behavior blocker has been known to create/cause a conflict with avast.
Like I said above the Comodo "kiosk"/sandbox slowed my system to a very slow crawl. 

[MrMaxaMan]

Wouldn't COMODO BB be better though? It has a sandbox system and is more complex overall.

Personally I prefer to use Comodo's BB, but it really is your choice on which one you prefer.

[Para-Noid]

I don't like dealing with all of the CFW "BB" pop-ups.

To each his own.