Bugzilla

**Affected versions**

* version1

**Affected platforms**
* macOS 10.15.6

**Steps to reproduce**
1. Launch FF.
2. Trigger the new Print UI modal.
3. Click on the Destination drop-down.
4. Click on the F11 button on the Mac Keyboard.

**Expected result**
* Drop down is closed when the user selects the Show desktop F11 key.

**Actual result**
* Drop down is not closed when pressing F11 and user cannot interact with the OS's buttons from the upper right side of the screen(Search and Notification Center)

**Suggested Severity**
*  Seeing as how it affects the user's accessibility to OS's options, but only happens on a specific OS, I would suggest this an S3.

**Regression range**
* Not a regression

**Additional notes**

* Screen cast of the issue: https://drive.google.com/file/d/1Fi58QSd7xiqB-uY-WZR5E1fbaZjk_BTB/view?usp=sharing

**Affected versions**
* 81.0a1(2020-08-12)

**Affected platforms**
* macOS 10.15.6

**Steps to reproduce**
1. Launch FF.
2. Trigger the new Print UI modal.
3. Click on the Destination drop-down.
4. Click on the F11 button on the Mac Keyboard.

**Expected result**
* Drop down is closed when the user selects the Show desktop F11 key.

**Actual result**
* Drop down is not closed when pressing F11 and user cannot interact with the OS's buttons from the upper right side of the screen(Search and Notification Center)

**Suggested Severity**
*  Seeing as how it affects the user's accessibility to OS's options, but only happens on a specific OS, I would suggest this an S3.

**Regression range**
* Not a regression

**Additional notes**

* Screen cast of the issue: https://drive.google.com/file/d/1Fi58QSd7xiqB-uY-WZR5E1fbaZjk_BTB/view?usp=sharing