From 1c091fd6b3d8dedd687a3c26bbcfcb75db14c18c Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Wed, 21 Feb 2018 22:31:23 +0100
Subject: [PATCH] Provide UA Gecko and Firefox slices by default for web
 compatibility.

---
 browser/branding/official/pref/firefox-branding.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/browser/branding/official/pref/firefox-branding.js b/browser/branding/official/pref/firefox-branding.js
index eb2bf489b5..190b84e78d 100644
--- a/browser/branding/official/pref/firefox-branding.js
+++ b/browser/branding/official/pref/firefox-branding.js
@@ -37,6 +37,10 @@ pref("app.update.url.manual", "https://@BRANDING_SITEURL@/");
 // supplied in the "An update is available" page of the update wizard.
 pref("app.update.url.details", "https://@BRANDING_SITEURL@/@BRANDING_RELNOTESPATH@");
 
+// Provide UA Gecko and Firefox slices for web compatibility
+pref("general.useragent.compatMode.firefox",true);
+pref("general.useragent.compatMode.gecko",true);
+
 // Switch Application Updates off for now
 pref("app.update.enabled", false);