https://support.mozilla.org/en-US/kb/compact-mode-workaround-firefox
- Navigate to
about:config
and clickAccept the Risk and Continue
- Find the
browser.compactmode.show
preference - Toggle the setting to
true
and close the tab - Click the hamburger menu in the top right
- Click
More Tools
- Choose
Customize toolbar...
- At the bottom of the panel, click
Density
- Choose
Compact (not supported)
- Click
Done
- Navigate to
about:config
and clickAccept the Risk and Continue
- Find the
webgl.force-enabled
preference - Toggle the setting to
true
and close the tab - Navigate to
webglreport.com
to check that WebGL is working
- Navigate to
about:config
and clickAccept the Risk and Continue
- Find the
ui.key.menuAccessKeyFocuses
preference - Toggle the setting to
false
and close the tab