Boris Zbarsky [:bzbarsky] Reporter
	Description • 8 years ago

STEPS TO REPRODUCE:
1)  Ensure you have an old version of Flash.
2)  Ensure you are running e10s.
3)  Load https://www.mozilla.org/en-US/plugincheck/
4)  Observe the old version being listed.
5)  Update Flash from https://get.adobe.com/flashplayer/
6)  Reload https://www.mozilla.org/en-US/plugincheck/
7)  Observe the old version is still being listed.
8)  Open https://www.mozilla.org/en-US/plugincheck/ in a non-e10s window.
9)  Observe the new version of Flash is now listed.
10) Reload https://www.mozilla.org/en-US/plugincheck/ in the e10s window.
11) Observe the new version of Flash is now listed.

The incorrect thing here is step 7: it should list the new version of Flash.

Mossop suspects that navigator.plugins.refresh may not do the right thing in a child process.

	Tracy Walker [:tracy]
	Comment 1 • 8 years ago

bz, did you restart the browser as part of the Flash update process?  The process asks you to restart browser.  Perhaps step 8 is acting like a restarted browser?

I could not reproduce this if restarting the browser as instructed.

Mac 10.11.2, Nightly 47.0a1, 20160209030347 - WFM
Windows 7, Nightly 47.0a1, 20160208030244 - WFM
Ubuntu 14.04.2, Nightly 47.0a1, 20160209030347 - WFM

	Boris Zbarsky [:bzbarsky] Reporter
	Comment 2 • 8 years ago

> bz, did you restart the browser as part of the Flash update process?

No.  If I had, it would have been in the steps to reproduce.  ;)

> The process asks you to restart browser.

I'm aware of that, but we don't actually need to do that in non-e10s, and restarting our browser is enough of a PITA that we shouldn't require it if we don't have to.

> Perhaps step 8 is acting like a restarted browser?

It's possible, but more likely it actually correctly rescans plugins....

	Michelle Funches - QA
	Comment 3 • 8 years ago

QA Update: reference the attached and "ni" if I can provide further testing or assistance. I could reproduce original. (No browser restart and the plugin check page retained old info.) I then check about:addons and observed the info was displayed accurately. I returned to the plugin check page and then I was able to refresh and see the info correctly displayed.

	Brad Lassey [:blassey] (use needinfo?)
	Comment 5 • 8 years ago

no more testing needed, this looks to be triaged and confirmed correctly

	Benjamin Smedberg
	Comment 6 • 8 years ago

And a duplicate. Although we should not be triaging this so low: it's a regression that could bite us pretty bad in the event of Flash 0-day updates. Not plugincheck in particular, but any site like youtube that does Flash version checks and alerts users to update.