1. Go to https://demo.bitmovin.com/public/firefox/av1/ 2. Play the video and mute the tab 3. Switch to some other tab 4. Make sure automatic session restore is enabled 5. Restart the browser Result: [bug 1345098] Lazy browser prematurely inserted via 'mute' property access: getter@chrome://browser/content/tabbrowser.js:1999:37 toggleMuteAudio@chrome://browser/content/tabbrowser.xml:1932:15 restoreTab@resource:///modules/sessionstore/SessionStore.jsm:3744:7 restoreTabs@resource:///modules/sessionstore/SessionStore.jsm:3686:9 ssi_restoreWindow@resource:///modules/sessionstore/SessionStore.jsm:3503:7 ssi_restoreWindows@resource:///modules/sessionstore/SessionStore.jsm:3627:5 initializeWindow@resource:///modules/sessionstore/SessionStore.jsm:1178:11 onBeforeBrowserWindowShown/<@resource:///modules/sessionstore/SessionStore.jsm:1329:9 promise callback*onBeforeBrowserWindowShown@resource:///modules/sessionstore/SessionStore.jsm:1314:5 ssi_observe@resource:///modules/sessionstore/SessionStore.jsm:765:9 onLoad@chrome://browser/content/browser.js:1326:5 onload@chrome://browser/content/browser.xul:1:1 Premature insertions are not awful for performance, they also cause various kinds of problems like bug 1418009 and bug 1418038. Regression window: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=be7a5a989cb3dbabce6a1bb78aad2d05baa3589a&tochange=7a630a4add1f5c974c95ab829658d49653535c36 I guess it's bug 1387976.
I meant "not *only* awful".
Abdoulaye, can you look in to this?
I believe this is caused by a merge conflict between bug 1387976 and bug 1443849. In https://hg.mozilla.org/integration/autoland/rev/de798abb5ac7 from bug 1387976 there was a this.linkedPanel check that avoided lazy browser premature insertions, but this was lost in https://hg.mozilla.org/integration/autoland/rev/7a630a4add1f from bug 1443849.
Thank you Oriol for pointing this out. It was indeed a merge conflitct. Yes Jared, Please assign me this. I will quickly land a patch for this.
Flags: needinfo?(ablayelyfondou) → needinfo?(jaws)
Assignee: nobody → ablayelyfondou
Status: NEW → ASSIGNED
(In reply to Oriol Brufau [:Oriol] from comment #3) > In https://hg.mozilla.org/integration/autoland/rev/de798abb5ac7 from bug > 1387976 there was a this.linkedPanel check that avoided lazy browser > premature insertions, but this was lost in > https://hg.mozilla.org/integration/autoland/rev/7a630a4add1f from bug > 1443849. That's not "from bug 1443849", the sheriffs did that. No idea why this is labeled "part 4" of my patch series which it clearly wasn't. Also not sure why this was a conflict in the first place. My patches didn't even touch toggleMuteAudio. :|
No longer blocks: 1443849
> Also not sure why this was a conflict in the first place. My patches didn't even touch toggleMuteAudio By looking closely to the issue, I am a little bit confused too. I can't see any conflicts created from your patches. In addition, all the code from my patch disappeared.
I have no idea other than https://hg.mozilla.org/integration/autoland/rev/7a630a4add1f says this: Bug 1443849 - Part 4: Fix broken tabbrowser.xml after merge conflict. CLOSED TREE The author is Sebastian Hengst so I guess you can ask him. But I don't really see how this matters, wouldn't fixing tabbrowser.xml so that it behaves like it was supposed to in bug 1387976 do the trick?
Abdoulaye, it seems that most parts of your patch already landed, e.g. see your test: https://searchfox.org/mozilla-central/source/browser/base/content/test/tabs/browser_bug_1387976_restore_lazy_tab_browser_muted_state.js So you should use "hg pull" and update, and then attach a patch only with the parts that magically disappeared.
(In reply to Oriol Brufau [:Oriol] from comment #9) > Abdoulaye, it seems that most parts of your patch already landed, e.g. see > your test: > https://searchfox.org/mozilla-central/source/browser/base/content/test/tabs/ > browser_bug_1387976_restore_lazy_tab_browser_muted_state.js > > So you should use "hg pull" and update, and then attach a patch only with > the parts that magically disappeared. Oops I forgot to update after a pull the last time (too used to git :)). Thanks
Comment on attachment 8959903 [details] [diff] [review] Avoid invoking mute and unmute methods for lazy-browsers to prevent premature insertion Thanks! I guess :jaws should review this
Attachment #8959903 - Flags: review?(jaws)
Comment on attachment 8959351 [details] [diff] [review] Reapplied changsets de798abb5ac7 and a049e86626d4 (bug 1387976) for lazy-tab muted state to persist across browser restarts and this previous patch is obsolete.
Attachment #8959351 - Attachment is obsolete: true
Attachment #8959903 - Flags: review?(jaws) → review+
Pushed by email@example.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/006ec77ea08a Avoid invoking mute and unmute methods for lazy-browsers to prevent premature insertion. r=jaws
I have reproduced this bug with Nightly 61.0a1 (2018-03-14) on Windows 10 , 64 Bit ! This bug's fix is Verified with latest Nightly ! Build ID 20180327105613 User Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0 [bugday-20180321]
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