'''Hello.''' I have no problem with surfing through the internet but I cannot open the web site "https://addons.mozilla.org/" always show this error in Firefox 4.0: "the connection has timed out". I have no idea why it is happening? i read the post "http://forums.mozillazine.org/viewtopic.php?f=38&t=418624" and tried to clear cache, enabling SSL, deleting "cert8.db" file in the profile folder, but these doesn't solve the problem. sometimes i could open "https://addons.mozilla.org/" (about 5% of my efforts) but i cannot understand the reason. i write the error massages in Firefox and Google Chrome follow: '''firefox error report:''' The connection has timed out The server at addons.mozilla.org is taking too long to respond. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web. '''Google Chrome error report:''' This webpage is not available The webpage at https://addons.mozilla.org/ might be temporarily down or it may have moved permanently to a new web address. Here are some suggestions: Reload this web page later. Error 118 (net::ERR_CONNECTION_TIMED_OUT): The operation timed out. My OS: windows 7, Firefox 4.0, Google Chrome 10