clicking help menu opens up brackets text editor

[osamu.morozumi]

I installed brackets text editor yesterday.  Now when I open help menu it opens the last file I was editing in brackets.  I downloaded it here: http://www.webupd8.org/2013/11/install-b...-open.html

I'm very new to linux so I appreciate any suggestions to fix this. 

[valtam]

Menu, type in mime, Mime type editor, and search for html in the Filter box. Make sure html is set to open with Firefox.

[osamu.morozumi]

Thanks