Bug 1570478 - Disabled browser_ext_devtools_network.js on Windows, Linux and MacOS. r=jmaher

Differential Revision: https://phabricator.services.mozilla.com/D42456

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

browser/components/extensions/test/browser/browser-remote.ini

@@ -19,7 +19,7 @@ skip-if = fission
 [browser_ext_devtools_inspectedWindow_eval_bindings.js]
 [browser_ext_devtools_inspectedWindow_reload.js]
 [browser_ext_devtools_network.js]
-skip-if = fission
+skip-if = fission || os == 'linux' || (os == 'mac' && debug) || (debug && os == 'win' && bits == 64) # Bug1570478
 [browser_ext_devtools_page.js]
 [browser_ext_devtools_page_incognito.js]
 [browser_ext_devtools_panel.js]