Another update: I came across an app on the google play store called "Sound About". If you install that, you can specify which apps use which speakers etc. fixes the problem for the time being until the browser situation sorts its self out.
In the settings for it, set the "SoundAbout Service" to "ON-Foreground" mode. Then set the media audio to "speaker" and voila!
The app has a free trial version, and its $3 USD if you want to buy it.