Hello, when I do a google search with "Inject script into web traffic to interact with web pages" setting enabled, after I hit the "enter" button, the Firefox UI freezes for about 10 seconds. When I disable this setting the firefox works normal. Full sysinfo of the PC can be found here.
Steps to reproduce:
Install FF 117.0 x64 and Kaspersky Free 21.14.5.462 on Win 10
Create new FF profile, open google.com, write anything to search box, press enter key
Screen cast with problem - "Inject script into web traffic to interact with web pages" setting enabled:
Screen cast without problem - "Inject script into web traffic to interact with web pages" setting disabled: