Bug 1647973 - Disable browser_bug1170531.js on Linux opt for frequent…

… failures. r=intermittent-reviewers,jmaher

Differential Revision: https://phabricator.services.mozilla.com/D97064

toolkit/content/tests/browser/browser.ini

@@ -52,6 +52,8 @@ skip-if = (os == "win" && processor == "aarch64") || (os == "mac") || (os == "li
 tags = audiochannel
 skip-if = (os == "win" && processor == "aarch64") # aarch64 due to 1536573
 [browser_bug1170531.js]
+skip-if =
+    os == "linux" && !debug && !ccov # Bug 1647973
 [browser_bug1198465.js]
 [browser_bug295977_autoscroll_overflow.js]
 skip-if = ((debug || asan) && os == "win" && bits == 64)