Link to the file containing the bug
https://github.com/aminomancer/uc.css.js/blob/master/JS/privateTabs.uc.js

Describe the bug
Some of the functionality of the Private Tabs script stopped working in Nightly 136a, specifically the shortcut Ctrl+Alt+P and the option to open a link in a new private tab in the context menu when right-clicking a link does not work either, clicking the option does nothing.

To Reproduce
Steps to reproduce the behavior:

1. Install Firefox Nightly 136a
2. Install privateTabs.uc.js script
3. Press the key combination Crtl+Alt+P
4. Right-click a link and select the option to open the link in a new private tab.

Expected behavior
Pressing Ctrl+Alt+P opens a new private tab.
Clicking the Open link in new private tab option opens a new private tab.

Desktop (please complete the following information):

• OS: Windows 10
• Firefox update channel: Nightly 136
• Version: 136a1
• Build ID: 20250112

Additional context
The script is fully functional up to Firefox version 135 beta, from nightly 136 on some features of the script start to fail, the new private tab button in the tab bar remains functional.