This is a follow-up to bug 719875. When we load pages from the cache, we un-freeze plugins that were already playing, but if a plugin hasn't been clicked-to-play, we don't get an event letting us know about it. There are some workarounds available on the front-end side, but getting this event again would give us the cleanest solution.

I can't reproduce this bug. I used the following steps: 0) Apply the patch from bug 711552 1) Add a dump() statement to the event handler for "PluginClickToPlay" in /browser/base/content/browser.js 2) Open http://people.mozilla.org/~mwargers/tests/plugins/flash/ 3) Open http://people.mozilla.org/~mwargers/tests/plugins/flash/flashembed.html 4) Activate the plugins 5) Open the Web Console 6) Web Developer -> Work Offline 7) Hit back button 8) Hit forward button 9) Notice that there is no network traffic and the click-to-play overlay still shows 10) Activate the plugins This works and doesn't show any network traffic, so by that I am assuming that the page is loading from cache and the dump statements are still printing to the console.

My last sentence reads a little confusing. I'm not "assuming that the dump statements are being printed to the console" lol, the dump statements *are* being printed to the console. Apologies if I confused anybody.

According to https://bugzilla.mozilla.org/show_bug.cgi?id=730318#c9, this is not fixed.

There is a difference here between desktop and mobile. The event doesn't refire on mobile.

This bug will not be necessary since the work that is being done in bug 730318 will provide a better solution.