I am trying to get a USB GPS device working with a web browser.
So that I can use things such as Google Maps, Open Street Maps, Ordnance Survey etc. in a web browser.

So far I have gpsd working fine and native Linux programmes such as FoxtrotGPS will show my correct location on a map.

However I am unable to access GPS from within Firefox or Chromium (Linux Mint 17).

I have been told that gpsd access is deliberately disabled in the standard build, and that I will have to build Firefox using the option --enable-gpsd.

https://bugzilla.mozilla.org/show_bug.cgi?id=1250922

Link above suggests that this is deliberate and a contractual issue.

So is there a simple guide to how to rebuild a Linux program, and if possible specifically Firefox, to include an extra option/flag?

Edit: just found
https://developer.mozilla.org/en-US/...ld_preparation

Hopefully this may (eventually) get me to being able to build.