src: wrap firefox binary, not .desktop entry

Instead of trying to override the .desktop entry of Firefox by
installing the custom one and adjusting XDG_DATA_DIRS, just wrap the
firefox binary directly and adjust PATH. The former did not work with
Phosh, and on second thought, wrapping the binary is what's really
necessary. The launcher would have been just another useless layer.

Makefile

@@ -31,8 +31,8 @@ install: all
 	install -Dm644 "out/userChrome.css" \
 		"$(DESTDIR)/etc/mobile-config-firefox/userChrome.css"
 	install -Dm755 "src/mobile-config-firefox.sh" \
-		"$(DESTDIR)/usr/bin/mobile-config-firefox"
-	install -Dm644 "src/mobile-config-firefox.desktop" \
-		"$(DESTDIR)/usr/mobile-config/share/applications/org.mozilla.firefox.desktop"
+		"$(DESTDIR)/usr/mobile-config/bin/firefox"
+	install -Dm755 "src/mobile-config-path.sh" \
+		"$(DESTDIR)/etc/profile.d/mobile-config-path.sh"
 
 .PHONY: all clean install

src/mobile-config-firefox.desktop

@@ -1,11 +0,0 @@
-[Desktop Entry]
-Exec=mobile-config-firefox %u
-Icon=firefox
-Type=Application
-Terminal=false
-Name=Firefox
-GenericName=Web Browser
-MimeType=text/html;
-StartupNotify=true
-Categories=Network;WebBrowser;
-StartupWMClass=firefox

src/mobile-config-firefox.sh

@@ -23,9 +23,9 @@ for profiledir in ~/.mozilla/firefox/*/; do
 done
 
 if [ "$profile_found" = "true" ]; then
-	exec firefox "$@"
+	exec /usr/bin/firefox "$@"
 else
 	profiledir=~/.mozilla/firefox/firefox.default
 	prepare_profile "$profiledir"
-	exec firefox --profile "$profiledir" "$@"
+	exec /usr/bin/firefox --profile "$profiledir" "$@"
 fi

src/mobile-config-path.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+export PATH="/usr/local/bin:/usr/mobile-config/bin:$PATH"