Previously when I clicked on an action in a program that opens an HTML file it would open in the browser automatically. However, now instead of opening in the browser, it opens a nautilus window with the HTML file highlighted.

A good example of this problem is when I try to go to the dropbox website. If you use dropbox when you click "Launch Dropbox Website" it takes you to their website directly.

On my computer however, it opens a nautilus window of /tmp and THEN I have to click on open in chrome/firefox. To get it to open up properly.

Thoughts?

Update: Updating with results of grep "html" /usr/share/applications/*

$ grep "html" /usr/share/applications/*

/usr/share/applications/AptanaStudio3.desktop:MimeType=text/xml;application/xhtml+xml;application/x-javascript;application/x-php;application/x-java;text/x-javascript;text/html;text/plain

/usr/share/applications/defaults.list:application/xhtml+xml=firefox.desktop

/usr/share/applications/defaults.list:text/html=firefox.desktop

/usr/share/applications/firefox.desktop:MimeType=text/html;text/xml;application/xhtml+xml;application/xml;application/rss+xml;application/rdf+xml;image/gif;image/jpeg;image/png;x-scheme-handler/http;x-scheme-handler/https;x-scheme-handler/ftp;x-scheme-handler/chrome;video/webm;application/x-xpinstall;

/usr/share/applications/geany.desktop:MimeType=text/plain;text/x-chdr;text/x-csrc;text/x-c++hdr;text/x-c++src;text/x-java;text/x-dsrc;text/x-pascal;text/x-perl;text/x-python;application/x-php;application/x-httpd-php3;application/x-httpd-php4;application/x-httpd-php5;application/xml;text/html;text/css;text/x-sql;text/x-diff;

/usr/share/applications/gnome-terminal.desktop:X-GNOME-DocPath=gnome-terminal/index.html

grep: /usr/share/applications/kde4: Is a directory

/usr/share/applications/kompozer.desktop:MimeType=text/html;text/xml;text/css;text/x-javascript;text/javascript;application/xhtml+xml;

/usr/share/applications/mimeinfo.cache:application/xhtml+xml=firefox.desktop;AptanaStudio3.desktop;kompozer.desktop;

/usr/share/applications/mimeinfo.cache:text/html=geany.desktop;firefox.desktop;AptanaStudio3.desktop;sublime-text-2.desktop;kompozer.desktop;rstudio.desktop;

/usr/share/applications/mimeinfo.cache:text/x-r-html=rstudio.desktop;

/usr/share/applications/rstudio.desktop:MimeType=text/x-r-source;text/x-r;text/x-R;text/x-r-doc;text/x-r-sweave;text/x-r-markdown;text/x-r-html;application/x-r-data;application/x-r-project;text/x-r-history;text/x-r-profile;text/x-tex;text/x-markdown;text/html;text/css;text/javascript;

grep: /usr/share/applications/screensavers: Is a directory

/usr/share/applications/sublime-text-2.desktop:Comment=Sophisticated text editor for code, html and prose

/usr/share/applications/sublime-text-2.desktop:MimeType=text/plain;text/x-chdr;text/x-csrc;text/x-c++hdr;text/x-c++src;text/x-java;text/x-dsrc;text/x-pascal;text/x-perl;text/x-python;application/x-php;application/x-httpd-php3;application/x-httpd-php4;application/x-httpd-php5;application/xml;text/html;text/css;text/x-sql;text/x-diff;x-directory/normal;inode/directory;