URL: https://chatgpt.com

Browser / Version: Firefox 140.0
Operating System: Mac OS X 10.15
Tested Another Browser: Yes Safari

Problem type: Something else
Description: Text cursor (caret) is invisible in the ChatGPT input field when using Firefox on macOS.
Steps to Reproduce:
When using Firefox on macOS, the text cursor (caret) is not visible in the ChatGPT input box at https://chatgpt.com.
Steps to reproduce:

1. Open https://chatgpt.com in Firefox
2. Click on the message input field
3. Start typing. The text appears, but the blinking text cursor is missing

Additional details:

• Issue happens both in private browsing and normal mode
• Tested with hardware acceleration disabled
• Tested with gfx.webrender.all set to false
• No extensions are involved (tested in a clean profile)
• Does not occur in Brave or Safari (macOS)

View the screenshot

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