try redownloading the block list, also try deleting the squid cache.

try redownloading the block list

I got my copy fixed of these issues and a friends now.. https://forum.pfsense.org/index.php?topic=85965.msg544817#msg544817

What I just went through for a friends pfsense firewall was a learning experience.  I install fresh copy of 2.2.2 I think then he did all the updates but squid3 would not work in transparent mode. I checked the permissions and the owners to my own copy that works for cache folder and PID file. Since he had errors for bad cache folders and couldn't fix with squid -z.  after deleting all the squid cache folders and recreating and all that still not run.. Last thing I did is delete EVERY instance of SQUID on the system after fixing permissions and then installed squid3 again and it all works for him now. My system is working squid3 and Antivirus and so is a brand new friends firewall .. squid can't beat me! Don't give up and I will never fail I tell myself!

I am also having the same issue, fast disks, 2GB RAM. Squid3 data transfer is less than 1Mbit on a 50 Mbit connection using the reverse proxy feature. Did you resolve this?

No solutions found to getting squid3 to work.

I installed Cron package and created a cron job with /usr/local/bin/freshclam –quiet  and that did it for me. not sure if I just did patch or work around or what.

It was there ! Many thanks !

Thank you PiBa! It works like a charm!

thank you guys for your suggestion and comments, and sorry for the late feedback due to a reason I temporarily disable of using both squid3 and squidguard at the same time. I've made some experiment and follow some of your suggestion. but unfortunately it has an abnormal functionality sometime it works sometimes it won't so I decided to stop for awhile. but anyway and again thank you guys for the help. best regards Argie Santos from Philippines.

@KOM: Don't waste your time with squid2.  Install squid3 instead.  Honestly, I don't know why they even have squid2 still in packages.  It's ancient. This is surprising. I had no idea that squid3 is more stable. I assumed that that been marked as beta, the squid package would be more stable. Can i just uninstall squid, then install squid3 and keep the configuration, or i have to reconfigure this package and/or squidGuard?

forcing safesearch is not working for me.

@qwaven: Hey there, So I bit the bullet and upgraded to 2.2.4-RELEASE. Had to fight with it a bit but it seems to be working now. So… after installing Squid3. Turning on the proxy seems to be working with or without transparent mode on. :) However when I try and enable HTTPS/SSL filtering anything SSL no longer will work. I see: error:invalid-request through-out the logs. Not sure what to do about this? Thoughts? Thanks! maybe need import cert to your browser?

I don't think there are recommendations for your scenario.. But from what i expect it should work alright for most options like your planning it..

I found a non conventional solution adding c1.vkcache.com to "Bypass proxy for these destination IPs" option, it works but I'm still wondering why squid blocks this website and why not the others streaming sites  ???