Composer bug in my forum & my desktop with a bigger-blocking plus icon

Do you happen to be on Chromium or Opera? On Linux Mint here, I can’t reproduce the “big blocking plus icon” in Firefox - it only shows up for me in Chromium-based browsers.


A few quick things that did change the symptom on my end:

  • Toggle hardware acceleration (on/off) in Chromium/Opera, then restart.
  • Try launching once with --disable-gpu to see if it’s the GPU path.
  • Check chrome://gpu for any compositing/accelerated canvas issues.
  • If you’re on Wayland (say you’re using Edge on Linux), test --ozone-platform=wayland vs x11 (or vice-versa).
  • Reset any zoom/scaling quirks (browser zoom 100%, OS fractional scaling off).
  • Try with all extensions disabled (Incognito with no extensions is a quick check).

it helps to share:

  • your Distro/DE (e.g. Mint Cinnamon), kernel, and windowing system (X11/Wayland)
  • Browser + version (chrome://version), and whether hardware acceleration is on
  • GPU + driver (mesa/NVIDIA proprietary)
  • Repro steps and a short screen capture

FWIW I’ve sent reports to Google/Opera already; Firefox on Mint renders the composer normally for me, so this looks confined to the Chromium path.