apache2 .htm extension

Since I've installed LAMP stack on ubuntu server with apache2, I've been having a weird issue. Whenever I create a file called filename.html, it renders and displays on browser fine. But whenever I create file with extension .htm, i开发者_运维问答t will prompt the browser (firefox) to save the file.

I've already looked into /etc/mime.types and /etc/apache2/mod-enabled/mime.load

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And what's in these files for .htm extension? Can you check what mime-type returned by the Apache? (via browser plugins/sniffer)

After that you will see the issue...