Not being able to select elements?

Web Scraper 1.95.8:
Firefox 115.20.0esr (64-bit):
OS Win 7:

Recently, on any site, when I try to point and click on a web page element for selecting it, first it doesn't fill in with any css in the "select element" bar, then if i click on the button "done selecting", it does fill in (rather than closing) - in the pictured case "p.lead", then on a second click it closes but nothing appears in the selector field. Stays empty.
See screenshot while still just pointing:

The metadata address points to the page I am testing on.

Have I forgotten how to set up a sitemap or this is a bug?

The sitemaps I have used 2 weeks ago work fine scraping (but I can't add any new selector to them for above reasons).

Thanks alot!

Hi,

Have you tried clearing cookies and browser cache and restarting your pc?

Thanks! It works now.

Cheers.