Serena MCP keeps popping up broken browser window when App goes into foreground

What version of the Codex App are you using (From “About Codex” dialog)?

Version 260205.1301 (554)

What subscription do you have?

pro

What issue are you seeing?

I downloaded the App for the first time. I have the following MCP config launching (i got this from the codex cli which I presume the App is also using)

/mcp

🔌  MCP Tools

  • serena
    • Status: enabled
    • Auth: Unsupported
    • Command: uvx --from git+https://github.com/oraios/serena serena start-mcp-server --context codex
    • Tools: activate_project, check_onboarding_performed, delete_memory, edit_memory, find_file, find_referencing_symbols, find_symbol, get_current_config,
get_symbols_overview, initial_instructions, insert_after_symbol, insert_before_symbol, list_dir, list_memories, onboarding, read_memory, rename_symbol,
replace_symbol_body, search_for_pattern, think_about_collected_information, think_about_task_adherence, think_about_whether_you_are_done, write_memory
    • Resources: (none)
    • Resource templates: (none)

Every time I try to click on the app, it seems like it's trying to launch the serena MCP, but failing. And it goes to a browser window URL like this: http://127.0.0.1:24289/dashboard/index.html. (this is a serena dashboard URL, but it's not running. ERR_CONNECTION_REFUSED)

What steps can reproduce the bug?

1. Configure the serena MCP for use in codex-cli.
2. Make sure it works.
3. Download App and Launch

What is the expected behavior?

It should not keep launching the failed URL.

Additional information

_No response_