Proxy+ from
http://www.proxyplus.cz/
Not really a firewall as such,
And it works just fine, I get successful connection and web browsing for a random amount of time.
Log from proxy+ shows DNS problem ...
01.25.2007 20:49:02 911:HTTPP ** New HTTP request occurred - starting new HTTP Proxy thread
01.25.2007 20:49:02 911:HTTPP Client:"192.168.10.3:2770"
01.25.2007 20:49:02 911:HTTPP Request head[0]:"GET
http://en-us.fxfeeds.mozilla.com/en-.../headlines.xml HTTP/1.1"
01.25.2007 20:49:02 911:HTTPP URL:"http://en-us.fxfeeds.mozilla.com/en-US/firefox/headlines.xml"
01.25.2007 20:49:02 911:HTTPP Decoded URL:"http://en-us.fxfeeds.mozilla.com/en-US/firefox/headlines.xml"
01.25.2007 20:49:02 911:HTTPP Decoded Method:"GET"
01.25.2007 20:49:02 911:HTTPP Target server:"en-us.fxfeeds.mozilla.com:80"
01.25.2007 20:49:02 911:HTTPP "DoHTTPCaching = DHC" entered
01.25.2007 20:49:02 911:HTTPP "TestIfCacheable = TIC" entered
01.25.2007 20:49:02 911:HTTPP TIC: object not found in the cache
01.25.2007 20:49:02 911:HTTPP DHC: object will be loaded from the server.
01.25.2007 20:49:02 911:HTTPP "LoadHTTPData = LHD" entered
01.25.2007 20:49:02 911:HTTPP "SelectTargetHost = STH" entered
01.25.2007 20:49:02 911:HTTPP STH: server type: Direct connection
01.25.2007 20:49:02 911:HTTPP STH: server: "en-us.fxfeeds.mozilla.com:80"
01.25.2007 20:49:16 910:HTTPP LHD: error obtaining server IP (DNS request)
01.25.2007 20:49:16 910:HTTPP ** Leaving HTTP request thread = LHT
01.25.2007 20:49:16 910:HTTPP LHT: In:0, Out:0, Size:-1
01.25.2007 20:49:16 911:HTTPP LHD: error obtaining server IP (DNS request)
01.25.2007 20:49:16 911:HTTPP ** Leaving HTTP request thread = LHT