Through discussions with a friend, using export DISPLAY=:1.0, firefox started but displayed a new error of below. But heck, after displaying error message, my AWS instance freezes and I could not even connect anymore, even after rebooting or stopping and then restarting through AWS console, any suggestions ?

The glxtest error message when running Firefox typically indicates a issue with the OpenGL or graphics drivers. Here’s what it might mean:

– glxtest is a test for OpenGL support, which Firefox uses for hardware acceleration and rendering.
– If glxtest fails, it can indicate a problem with:
– OpenGL drivers
– Graphics card configuration
– X server setup
– Library dependencies

Common errors include:

– glxtest: unable to open display
– glxtest: failed to create GLX context
– glxtest: failed to create OpenGL context

To address this, try:

1. Updating graphics drivers
2. Checking X server configuration
3. Disabling hardware acceleration in Firefox (by setting gfx.direct2d.disabled to true in about:config)
4. Verifying library dependencies (like libGL, libGLX, or libX11)