This isn't anything critical but maybe something that the webmaster might like to sort out (the issue is a longstanding one).
I use Firefox to browse the forum. Whenever I get to any forum webpage the 'icon' shown on the Firefox tab is a rotating circle (i.e. meaning the webpage is loading). Problem is it remains 'stuck' at that - the icon never changes to the blue icon 'M' - meaning the page is fully loaded.
The only way to get the icon to change is to click on the 'cross mark' at the right-hand side of the address-bar (i.e. tell Firefox to stop loading the page). Then the icon changes to the 'M' icon.
Like I said nothing critical, but could do with attention if there's a perfectionist around.