If a page uses or removes many <object> elements which are not actually plugins, loading the page goes to a crawl because UXP recalculates the plugin UI every time.
Only dispatch a PluginRemoved event for actual plugins.
This creates a number of stubs and leaves some surrounding code that may be irrelevant (eg. recorded time stamps, status variables).
Stub resolution/removal should be a follow-up to this.
wolfbeast
win7-7
adeshkp
wolfbeast
Matt A. Tobin