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Plugin management UI/search overlay has severe blur/rendering artifacts #19677
Description
What version of the Codex App are you using (From “About Codex” dialog)?
26.422.30944 (2080)
What subscription do you have?
chat GPT plus
What platform is your computer?
_macbook pro 2019 macOS 15.7.4
What issue are you seeing?
Device: 2019 Intel MacBook Pro, Intel CPU
Codex Desktop: latest version, freshly reinstalled
Browser Use plugin: restarted/reinstalled
Problems:
- Browser Use in-app browser cannot navigate to any external URL.
- https://example.com fails
- http://example.com fails
- https://www.xiaohongshu.com/ fails
- tab remains about:blank
- error observed from tool: nodeRepl.fetch request failed
- Local file:// HTML page renders correctly.
- Plugin management UI/search overlay has severe blur/rendering artifacts.
- Launching Codex with Chromium GPU flags does not help:
- --disable-gpu
- --disable-gpu-compositing
- --disable-accelerated-2d-canvas
- --disable-software-rasterizer
- --disable-features=CanvasOopRasterization,VizDisplayCompositor,UseSkiaRenderer
- --use-angle=swiftshader
- Some flag combinations cause the Dock icon to bounce indefinitely and require force quit.
Tried:
- Reinstalled latest app
- Restarted Browser Use plugin
- Checked VPN/proxy/firewall basics
- Enabled Reduce Transparency in macOS Accessibility
- Tried disabling GPU/Chromium rendering flags
What steps can reproduce the bug?
Steps to reproduce:
- Use a 2019 Intel MacBook Pro with Intel CPU.
- Install the latest Codex Desktop app.
- Enable or restart the Browser Use plugin.
- Open Codex Desktop.
- Open the in-app browser / Browser Use session.
- Try navigating to an external URL, for example:
- Observe that navigation fails. The browser remains on about:blank and the tool reports:
nodeRepl.fetch request failed - As a control test, open a local file:// HTML page in the same in-app browser.
- Observe that the local file:// page renders correctly.
- Open the plugin management page and use the plugin search UI.
- Observe severe blur/rendering artifacts in the search overlay / plugin list area.
- The issue persists after reinstalling Codex Desktop, restarting the Browser Use plugin, enabling macOS Reduce Transparency, and launching Codex with GPU-disabling Chromium flags.
What is the expected behavior?
No response
Additional information
No response
Activity
github-actions commentedon Apr 26, 2026
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
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[-]Browser Use in-app browser cannot navigate to any external URL[/-][+]Plugin management UI/search overlay has severe blur/rendering artifacts[/+]Uncle-Gao commentedon May 19, 2026
Same Intel-GPU CSS
backdrop-filterbug as #18341 — the plugin search overlay uses backdrop-filter for its blurred background, which fails on Intel HD/UHD drivers under macOS. Full root-cause writeup: #23458.Runtime fix (CDP injection, no app.asar modification): https://github.com/Uncle-Gao/codex-gpu-fix
shenhua170-gd commentedon May 20, 2026
Update: the Browser Use / in-app browser navigation issue has been resolved on my side. External pages such as GitHub now load correctly.
The remaining reproducible problem is the plugin/search overlay rendering artifact on my Intel Mac.
Based on #23458 and the investigation linked by @Uncle-Gao, this looks consistent with an Electron / Chromium compositor issue triggered by CSS
backdrop-filteron Intel macOS. Disablingbackdrop-filterfor the affected overlay appears to be a viable workaround.A product-side fix might be to avoid
backdrop-filterin the plugin/search overlay, or add a reduced-transparency / Intel-macOS fallback style for this UI.ax-openai commentedon Jun 12, 2026
Closing as a duplicate of #18341.