The register key Shift Kitty is talking about is this one:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\Associations\UrlAssociations\http\UserChoice\Progid
Do you know how to edit your register?
If you don't, be very careful because it can make your computer not start up again if you do it wrong.
Type in start: regedit
Start the program and follow the location mentioned above.
If the "progid" key is "ChromeHTML" then the problem lies somewhere else.
If the "progid" key is either "FirefoxURL" or "IE.HTTP" then you can change it to "ChromeHTML" (without the quotation marks)
Do the same with:
HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\Associations\UrlAssociations\ftp\UserChoice\Progid
HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell\Associations\UrlAssociations\https\UserChoice\Progid