Bug 1714295 - disable browser_screenshots_dimensions.js on linux_18.0…

…4_64 and windows for frequent failures. r=intermittent-reviewers,jmaher DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D121594

browser/extensions/screenshots/test/browser/browser.ini

@@ -17,4 +17,5 @@ https_first_disabled = true
 # Bug 1714210 Disabled on headless which doesnt support image data on the clipboard
 skip-if = 
   headless || tsan
-  os == 'win' && bits == 64 && (!debug || asan) # Bug 1714295
+  os == 'win' # Bug 1714295
+  os == 'linux' && bits == 64 # Bug 1714295