[hrvbr]

And reversely uBlock Origin doesn't block ads on Twitter and Tumblr, which makes it much less useful to me than Adblock Plus.

[sccxy]

I don't see any ads on these sites using uBlock Origin. Maybe it is your problem?

Time to update filter lists.

[anonymousab]

Update your lists.

Perhaps the auto update of the extension depends on the update settings of your browser.

[gnodar]

Here is the developer of uBlock Origin, telling me how to block Twitter specific requests: https://news.ycombinator.com/item?id=11141600

[muppetman]

uBlock Origin blocks nothing but what YOU tell it to. The problem isn't uBlock.