In the last few days when I enter the GOG.com web site or forum Malwarebytes popups that "htl.bid"' is blocked (outbound Firefox.exe)

Only thing I can find about it that it has to do with advertising.

I use Nod32 and Malwarebytes Anti-Malware. They find nothing strange on my computer.
Also scanned with a few online/portable scanners.

More people who seeing this?

Maybe it's nothing...

You're probably infected. I just looked at the console and the only third-party request GOG's front page makes is fonts.googleapis.com. GOG does not have third-party ads.

(Antiviruses are a complex subject. As a human user, at best you're as secure with one as without one (if you keep the OS updated).)

I just checked too and htl.bid is not in the HTML code of GOG.com.
Just like starmaker said it's probably a virus.
Try checking your extensions.

Strange, from what I could Google, it should've come from an ad or something, but GOG doesn't seem to have any ad spaces on their website. Could've been picked up from another site/session.

Thank you guys.

I don't know. Don't think i am infected. I tried lots of scanners they found nothing.

It does not happen everytime. Two times now.

The weid thing is it's happen only at GOG.com

You're not, htl.bid is a server that's been blacklisted by Malwarebytes.

That block has been removed. Update your Malwarebytes and clear your Firefox cache.