status field with hyperlink shows up sometimes when the game is loading, and stays

[Boycraft]

Sometimes link shows up in the left bottom part of the screen and stays, even after full-screen. I suppose it appeared when I hovered some link before starting the game and it stayed after game went to full-screen. Could not make a screenshot of it with Fraps and after a couple of times (starting game) I no longer saw it. But after that I made a screenshot with FastStone Capture (the cursor or mouse pointer appeared after I made one of the screenshots).
Firefox Nightly 22.0a1 (2013-03-30), Download master extensions (Download master Media Monitor 1.0, Download master Plugin, Download master Remote Download 1.9.1, Download master Toolbar 1.5.7), Ant Video Downloader, VkOpt.
(I didn't install extensions on nightly, there were in Firefox stable but they appeared in nightly also)
I was selecting high resolution, changed some settings (v-sync (there was some problem, I think, don't remember clearly), then animation to high quality and resolution (it switched from 1920x1080 after turning off v-sync so I turned it back, didn't notice which one become instead of it))

[modeswitch]

Holy screenshots! :)

I noticed this too the other day. Might be a issue in Nightly.