- Edited
Basically to sum it up, uBlock Origin cosmetic (DOM) filtering sometimes doesn't work. It seems to be correlated with the way the page loads (Fresh tab vs Reused tab). It's hard to say if this is the real reason (it might be a different underlying issue), but I'm able to reproduce 100% of the time with this method. I'll copy the test scenarios from a previous post:
Scenario 1:
- We have websites A and B
- Using uBlock Origin, block a DOM element on website B
- Click on a link on website A that leads to website B in the same tab
- uBlock Origin successfully blocks the DOM element
Scenario 2:
- We have websites A and B
- Using uBlock Origin, block a DOM element on website B
- Click on a link on website A that leads to website B in a new tab (target="_blank")
- uBlock Origin fails to blocks the DOM element
- Refresh the page
- uBlock Origin successfully blocks the DOM element
Does that make sense? Let me know if there's anything else I can do to help.