Verified that this issue is fixed on Firefox 86.0.1 by using the reporter's original testcase. Tests were performed on macOS 11.2.3, Ubuntu 20.04 and Windows 10. It seems that by wanting to open the panel a second time it will be dismissed very fast. Here's an [attachment](https://drive.google.com/file/d/18x9MZEk9mpD_4CNPlaWs9wdXy8kaajhz/view?usp=sharing). Is this a known issue?
Bug 1695578 Comment 25 Edit History
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Verified that this issue is fixed on Firefox 86.0.1 by using the reporter's original testcase. Tests were performed on macOS 11.2.3, Ubuntu 20.04 and Windows 10. It seems that by wanting to open the panel every second time it will be dismissed very fast. Here's an [attachment](https://drive.google.com/file/d/18x9MZEk9mpD_4CNPlaWs9wdXy8kaajhz/view?usp=sharing). Is this a known issue?