Problem:
Some web sites refuse to load unless the tab is active, whereas most users appreciate tabs loading in the background. This behavior may not be specific to Firefox.
Examples:
https://www.linkedin.com/feed/
https://www.chase.com/ (especially after login)
Solution Requested:
A way to override this behavior, allowing all content to load in Background tabs. Preferred solution is Firefox-specific, OS agnostic, and works with the examples above.
Prior Research:
It's possible, but not confirmed, that the web sites may be using visibilitychange
or window.onfocus
or window.onblur
Handle Events or Event Listener techniques, described here.
The goal of this question is to override this. Greasemonkey?
Solutions that DO NOT work:
Disable Page Visibility API Firefox Addon
Always on focus userscript
"browser.tabs.loadInBackground" preference "true"
"browser.tabs.loadDivertedInBackground" preference "true"
"browser.tabs.loadBookmarksInBackground" preference "true"
"browser.zoom.updateBackgroundTabs" preference "true"
"toolkit.lazyHiddenWindow" preference "false"
Additional Notes:
Browser successfully loads all other pages in background.