I can reproduce this issue on Nightly117.0a1 Windows10. Once I click on the [Close Tab] button in the dialog, the browser remains stuck and will not operate any further mouse or keyboard operations. I must kill it from Windows Task Manager.
Bug 1842170 Comment 4 Edit History
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STR: 1. Start Browser w/ new profile 2. Turn on `Confirm before closing multiple tabs` from about:preferences#general 3. Restart Browser 4. Close `Make primary browser popup`, if any. 2. Open Several tabs 3. Right click on taskbar button 4. Select `Close window` 5. Click on `Close Tabs` button on the dialog I can reproduce this issue on Nightly117.0a1 Windows10. Once I click on the [Close Tab] button in the dialog, the browser remains stuck and will not operate any further mouse or keyboard operations. I must kill it from Windows Task Manager. Regression window: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=243ca18dc17200998c0c8d21979c15fb930e42fb&tochange=7903ed468b9ccbb72574bee396d0588325387502
STR: 1. Start Browser w/ new profile 2. Turn on `Confirm before closing multiple tabs` from about:preferences#general 3. Restart Browser 4. Close `Make primary browser popup`, if any. 2. Open Several tabs 3. Right click on taskbar button 4. Select `Close window` 5. Click on `Close Tabs` button on the dialog I can reproduce this issue on Nightly117.0a1 Windows10. Once I click on the [Close Tab] button in the dialog, the browser remains stuck and will not operate any further mouse or keyboard operations. I must kill it from Windows Task Manager. Regression window: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=243ca18dc17200998c0c8d21979c15fb930e42fb&tochange=7903ed468b9ccbb72574bee396d0588325387502 Suspect: Bug 1732517