Radial Mask unusable, support site unusable with firefox

ince this morning the radial mask tool is bugged / unusable for me.

I can place the mask initially and turn it without any problem. But once I resize it, every other click does resize it too. Turning the mask makes it bigger, dragging the center makes it bigger or smaller, depending on the direction I drag it.

Reinstalling Lightroom does not work.

Second problem: the support site found under https://helpx.adobe.com/de/support/support-new/support-apps.html#phsp has a bugged dropdown menu for firefox.

Third problem: Does Adobe have technical support at all? If not, please disregard my other problems, I will just cancel my subscription.