--- a/browser/base/content/test/webrtc/browser.ini
+++ b/browser/base/content/test/webrtc/browser.ini
@@ -7,15 +7,14 @@ support-files =
 
 [browser_devices_get_user_media.js]
 skip-if = (os == "linux" && debug) # linux: bug 976544
 [browser_devices_get_user_media_anim.js]
 [browser_devices_get_user_media_in_frame.js]
 [browser_devices_get_user_media_multi_process.js]
 skip-if = e10s && (asan || debug) # bug 1347625
 [browser_devices_get_user_media_screen.js]
-skip-if = (os == "linux") || (os == "win" && !debug) # bug 1320994 for linux opt, bug 1338038 for windows and linux debug
 [browser_devices_get_user_media_tear_off_tab.js]
 [browser_devices_get_user_media_unprompted_access.js]
 [browser_devices_get_user_media_unprompted_access_in_frame.js]
 [browser_devices_get_user_media_unprompted_access_tear_off_tab.js]
-skip-if = (os == "linux") || (os == "win" && bits == 64) # linux: bug 1331616, win8: bug 1334752
+skip-if = (os == "win" && bits == 64) # win8: bug 1334752
 [browser_webrtc_hooks.js]