Bug 1333264 - disabled test_master_password.html on Linux 32 debug for frequent failures. r=jmaher

toolkit/components/passwordmgr/test/mochitest.ini

@@ -11,7 +11,7 @@ support-files =
   chrome_timeout.js
 
 [test_master_password.html]
-skip-if = toolkit == 'android' # Tests desktop prompts
+skip-if = toolkit == 'android' || (os == "linux" && bits == 32 && debug) # Tests desktop prompts, Bug 1333264
 [test_prompt_async.html]
 skip-if = toolkit == 'android' # Tests desktop prompts
 [test_xhr.html]