Bug 1528429 - disable browser_urlBar_zoom.js on mac r=gbrown

Differential Revision: https://phabricator.services.mozilla.com/D52687

--HG--
extra : moz-landing-system : lando

browser/modules/test/browser/browser.ini

@@ -37,6 +37,7 @@ skip-if = os != "win" || (os == "win" && bits == 64) # bug 1456807
 [browser_UnsubmittedCrashHandler.js]
 run-if = crashreporter
 [browser_urlBar_zoom.js]
+skip-if = os == "mac" #Bug 1528429 
 [browser_UsageTelemetry.js]
 [browser_UsageTelemetry_domains.js]
 [browser_UsageTelemetry_private_and_restore.js]