Alexguitar,

I am seeing two issues: You are comparing two compositors:

• Compmgr would fail to update the Nightly window and was throwing errors to the terminal. - can you please provide what error messages were being thrown?
• Compton however did work fine - cairo? this is the accelerator used in ffx

Are you talking about this? https://developer.mozilla.org/en-US/d.../Compositing if so please try to disable hardware acceleration for Compmgr and see if this improved.

Also you have reported this in version 26, I will assume you have a few installations of FF?

Well the key problem I'm having is that the downloads drop down menu won't show unless I specificaly use a desktop compositor.

With dcompmgr and the gl backend enabled I get the following after starting it and then launching Nightly: pastebin

Compton(github), is also a X11 compositor, though provides different results than dcompmgr.

And yes, it does seem this is connected to the OpenGL acceleration used in dcompmgr. To be fair, this particular compositor hasn't been updated in 2 years, but is still widely used as a lightweight tool. Though I'm not really interested in using a compositor at all and would like to be able to see the download menu regardless of using one.

And sorry, I use a plugin called blender that will fake my browser details, which I forgot to disable before posting. On a side note that link you posted does not seem to be related to this matter. It's part of a HTML tutorial on drawing elements within a webpage using scripts.

This issue has been resolved in Nightly 32.0a1

Note that the Nightly channel (along with Aurora) gets checkins almost everyday so therefore they get a update of those days. Sometimes the checkins can lead tro issues or regressions as a result.

The Nightly channel has been at version 32.0a1 ever since April 29.