Wonkiness with right click menu when trying to change token layers

Whenever I try to change a token's layer by right clicking, going to layers, and then clicking the desired layer, the curser gets all screwy. I flickers between the normal pointer and the select (finger) pointer.  It makes it very difficult to click on the layer I want; it usually takes a few tries to get it to work. Is there a way I can fix this, or is it a bug? Thanks!

Lex, could you check to see if you have any extensions or plugins that might be interfering? Try removing them one at a time until you find one that is interfering. If none of them are please let me know and we can look elsewhere. :) - Gauss

Thank you for the reply.  It's really weird, I just went to do as you asked, and I had no problem at all.  I can't explain it.  I had a four hour session on Friday, and I had the problem the whole time.  I haven't installed or uninstalled any add-ins or plugins since then, and I haven't updated Firefox. I was using Skype at the time to talk to the players, could that have been the source of the problems?  I can't think of anything else that's different. I also had 6 players in my Roll20 campaign.  Could that have had something to do with it? I'll keep trying periodically, and if I see the problem happening again, I'll try to nail down what's causing it.  I'm very new to this program, and I just assumed this was a problem everyone was having.

NP, some bugs are caused by the system on the user's side of things. When it comes to right-click type bugs that is often the problem. But, it is not always the problem so if you continue to have issues please, let us know. :) - Gauss