Firefox 36, OSX 10.9
Notifications continue to work properly, despite the error. This may not be a phabricator problem, but actually an issue with Firefox - this does not occur in Safari or Chrome.
Navigating to phabricator website (this includes my local test installs both with and without SSL, and on secure.phabricator.com website), turn on the developer console and refresh the page. An error similar to the following appears:
`The connection to wss://phab.company.com:22280/ was interrupted while the page was loading.`
Even though the error states "while the page was loading" I believe it's an issue with the connection not being cleaned up when the page is being navigated away from. This stackoverflow may be related:
http://stackoverflow.com/questions/14140414/websocket-interrupted-while-page-is-loading-on-firefox-for-socket-io