Bugzilla

**Found in**
- Firefox 106.0

**Affected versions**
- Firefox 106.0
- Firefox 107.0a1

**Tested platforms**
- Affected platforms: macOS
- Unaffected platforms: Windows, Ubuntu

**Steps to reproduce**
1. Launch Firefox
2. Access about:preferences and scroll the page down
3. Press the keyboard arrows

**Expected result**
- Up key scrolls the page up and down key scrolls the page down

**Actual result**
- Left does nothing, and the other arrows scroll only up

**Regression range**
- Will see for a regression

**Additional notes**
- The issue can be seen in the following [attachment](https://drive.google.com/file/d/1CfJ2KUe45oHutt9YoSB2BY2yMAokhrZF/view?usp=sharing)
- If fullscreen is active, the issue is not reproducible

**Found in**
- Firefox 106.0

**Affected versions**
- Firefox 106.0
- Firefox 107.0a1

**Tested platforms**
- Affected platforms: macOS 13, Ubuntu 20.04 and Windows 10
- Unaffected platforms: 

**Steps to reproduce**
1. Launch Firefox
2. Access about:preferences and scroll the page down
3. Press the keyboard arrows

**Expected result**
- Up key scrolls the page up and down key scrolls the page down

**Actual result**
- Left does nothing, and the other arrows scroll only up

**Regression range**
- Will see for a regression

**Additional notes**
- The issue can be seen in the following [attachment](https://drive.google.com/file/d/1CfJ2KUe45oHutt9YoSB2BY2yMAokhrZF/view?usp=sharing)
- If fullscreen is active, the issue is not reproducible