You can do this with a custom link type, as described here.
The following code minimally does this for your case:
;; a function to open files in the browser:
(defun my-browse-file (path)
(concat "file:" path)))
;; add the new link type
(org-add-link-type "hfile" 'my-browse-file)
With this, you can use links in this format:
I think you need to use the absolute path to your file, I don't think you can use relative paths. At least, not when you pass the path to the browser as
file:///path/to/file, as is done here. You could alter
my-browse-file to insert the
/// for you, so your links can skip that bit.