system
25
I have the same problem. Running Avast Free 2014.9.0.2007 on Windows 8.1 x64 with all updates, Windows Firewall and no other security software installed. In Firefox 25 all Twitch.tv streams refresh at short random intervals (usually every few seconds, sometimes after 20-30 seconds). Using Safe Mode, disabling addons or setting http://.twitch.tv/ to the exclusions list in Web Shield do nothing to alleviate the issue, the only solution so far is completely disabling the Web Shield. The same streams work, however, in Internet Explorer with Web Shield up.