Windows 10 automatically switches between active windows

Question

I usually have two browser windows open when I'm working on my PC (one for working and one for watching online TV - not on an app).

Problem is, that while I am typing away in the active browser window, it will suddenly automatically switch to the other browser window which results in a bunch of "return to previous page" via backspace, muting the 'TV', scrolling around and other crazy annoying things (during the time it took me to type this so far I have exited the TV show I'm watching 4 times...).

This is not a keyboard-shortcut issue since it also happens when I'm just reading something without touching any keys. I simply want the window I selected and am working in to STAY as the active window and not automatically switch to the other window without warning.

Does anyone know how to fix this or turn it off?

Solution

Looking at this Windows Reddit post, it appears someone else found a resolution for this issue. Below is a quote from the article:

After an hour, and four background changes, behavior has stopped using this tip: changing Firefox's browser.tabs.loadDivertedInBackground setting in about:config to true.

Comments

[Admin]

If the answer solved your problem, please mark as solution.

[Overmind]

I confirm. FF is trying to work in the background and some pages may cause it to try to become the active window. It has been reported to them, the config is a good temporary solution until it gets patched.

[Henke]

On going to about:config and setting browser.tabs.loadDivertedInBackground to true. - It might have helped to some extent, not sure.. I am sure I have seen this problem even when I have set it to true.