Make theme: unwanted horizontal scrollbar

Think I answered it myself. It seems it is the skiplink that caused my horizontal scrolling problem in Firefox. Naughty! I will need to make some better css for hiding the skiplink offscreen.

I noticed this too after the recent update, I hope the theme author’s see this post and fix whatever has caused it.

Thanks for highlighting what it was, you saved me lots of time and frustration!

For anyone else looking – the CSS provided in this guide has helped me to fix this issue:

Hiding text for screen readers with WordPress Core