Yesterday I could use Google Chrome at work to access the internet and today it is being blocked by the firewall with an access denied error. IE and Firefox work fine from the same machine. Is there a way I can easily unblock Chrome so it works again?
The blocking is probably being done using the browsers user agent string. You can change the user agent string using the --user-agent command line argument to impersonate IE8, for example use the following.
"C:\Documents and Settings\\Local Settings\Application Data\Google\Chrome\chrome.exe" --user-agent="Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)"
This of course assumes they are allowing IE8 :-)
However, even if this works, you should check your companies support policies as you may be breaching them.
If Chrome is blocked but you need to use the Webkit engine to test websites, check out the Iron browser.
Iron is based on the same source code but doesn't transmit information to Google, nor does it automatically update. Those two things may be part of the problem with why Chrome has been blocked. You will still want to run it by your IT department.