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Browser check claims version is older than what is installed

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The problem is that when certain sites auto detect what browser I am running they seem to think I am running an older version of Firefox, and thus disable some functionality and/or tell me to update. I have noticed this problem with gmail, google+, deviantart, and even the mozilla update page. The mozilla page claimed I was running version 3.6

I have updated to the newest version. I have tried clearing out my cookies and cache. I have tried a clean uninstall and reinstall of firefox. So far, I have found no solution. Any help would be appreciated.

The problem is that when certain sites auto detect what browser I am running they seem to think I am running an older version of Firefox, and thus disable some functionality and/or tell me to update. I have noticed this problem with gmail, google+, deviantart, and even the mozilla update page. The mozilla page claimed I was running version 3.6 I have updated to the newest version. I have tried clearing out my cookies and cache. I have tried a clean uninstall and reinstall of firefox. So far, I have found no solution. Any help would be appreciated.

選ばれた解決策

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 GTB6 (.NET CLR 3.5.30729)

Your user agent according to more system details link on right of your post. The user agent getting stuck was not a issue as of Firefox 4.0 and newer.

See this on how to reset to default. https://support.mozilla.com/en-US/kb/websites+or+add-ons+incorrectly+report+incompatible+browser#w_reset-your-user-agent

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選ばれた解決策

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.5) Gecko/20091102 Firefox/3.5.5 GTB6 (.NET CLR 3.5.30729)

Your user agent according to more system details link on right of your post. The user agent getting stuck was not a issue as of Firefox 4.0 and newer.

See this on how to reset to default. https://support.mozilla.com/en-US/kb/websites+or+add-ons+incorrectly+report+incompatible+browser#w_reset-your-user-agent