Environment: Build identifier: Mozilla/5.0 (Windows NT 6.3; rv:26.0) Gecko/20100101 Firefox/26.0 Build Id: 20131028225529 OS: Windows 8.1 Pro Preview x86 Steps to reproduce: 1. Be sure that parameter value for plugins.click_to_play is true. 2. Install google hangouts plugin. 3. Login to google plus. 3. Click on the Start a Party button. Expected: Click to play overlay announces that Google Talk plugin should be allowed. Actual: The only announcement that a plug-in is needed is the fact that the doorhanger is blue.

This appears to show the location bar icon correctly now (on trunk and it should also work in beta3). I've been in contact with the google talk/hangouts teams, but I think we should be ok with the infobar for discoverability. Plugin details: Google Talk Plugin Video Accelerator File: npgtpo3dautoplugin.dll Path: C:\Users\bsmedberg\AppData\Roaming\Mozilla\plugins\npgtpo3dautoplugin.dll Version: 0.1.44.29 State: Enabled Google Talk Plugin Video Accelerator version:0.1.44.29 MIME Type Description Suffixes application/vnd.gtpo3d.auto Google Talk Plugin Video Renderer File: npo1d.dll Path: C:\Users\bsmedberg\AppData\Roaming\Mozilla\plugins\npo1d.dll Version: 4.8.2.15856 State: Enabled Version 4.8.2.15856 MIME Type Description Suffixes application/o1d Google Talk Plugin Video Renderer o1d Google Talk Plugin File: npgoogletalk.dll Path: C:\Users\bsmedberg\AppData\Roaming\Mozilla\plugins\npgoogletalk.dll Version: 4.8.2.15856 State: Enabled Version 4.8.2.15856 MIME Type Description Suffixes application/googletalk Google voice and video chat googletalk

This is what happens now here, FF 28.0a1 (2013-11-25): 1. Open https://plus.google.com/ -> the notification bar appears 2. Choosing "Allow" 3. Click on the "Start a Party" button on the right bottom of the page -> a new pop-up shows up, no CTP notification bar (expected because it's on the same domain) 4. Cancel the invitation message -> now the video call should be started in the pop-up, but it isn't 5. Click the CTP doorhanger -> Google Talk is allowed, Google Talk Video Render is blocked 6. Allow Google Talk Video Render too 7. Only after reload the camera starts So, the problem would be that second plugin that starts only in the pop-up. Please reopen if you think so.

I debugged this locally and the plugin is technically visible: hangouts has just moved it offscreen by positioning it at -10000,-10000. Bug 853973 might fix this, or else we can add a check for on-screen, but I'm not sure how many more workarounds are worthwhile.

Comment on attachment 8345416 [details] [diff] [review] click-to-play not discoverable for Google Hangouts video plugin because it is positioned at -40000,-40000. Check for positioning and treat this as a hidden plugin Review of attachment 8345416 [details] [diff] [review]: ----------------------------------------------------------------- r=me but I have requested changes to this underlying code in bug 853973.

I confirm that Google Hangout works now if allowing both google plugins from the 2 windows that show up. Verified FF 29.0a1 (2013-12-18) Win 7, Mac OS X 10.9, Ubuntu 12.04

Note: At some point a google tooltip appears saying: "Select 'Allow' for both Google Talk plugins in order to access the video call. See detailed instructions" which links here https://support.google.com/hangouts/answer/3110347?p=plugin&rd=1. The Firefox instructions are not really up to date (2. there is no blue icon, 3. don't know what this is about)