Hello! After the latest Firefox Desktop updates (not sure which one exactly, since I didn't notice the issue immediately), I've started experiencing a problem with copy-pasting text — specifically with line break formatting on Windows 10. Instead of copying line breaks using the Windows-style '''carriage return + line feed (\r\n)''', Firefox now copies only '''line feeds (\n)'''. As a result, the text appears as a single long line when pasted into native Windows applications — which breaks the expected formatting. This behavior mainly affects: * Text editable fields (e.g., contenteditable or textarea) in modern web applications. * Code blocks or snippets (such as in Markdown or monospace) copied using "Copy" buttons (e.g., in ChatGPT or GitHub). At first, I noticed this only when copying code from ChatGPT using the code-snippet copy button. But now it happens in almost all editable text areas — if I enter text with line breaks manually, and then copy it, those breaks do not appear properly in native Windows apps. For example: * In Google Sheets, I often edit text with line breaks in a cell, but when I copy it back, it's all flattened into one line. Right now, I have to fix this using scripts that replace \n with \r\n, but that's a very inconvenient workaround. ❗My main question is: '''What changed in Firefox that caused this behavior?''' This used to be reliable and feels like a regression. It’s a very basic feature and critically important for my daily workflow! 🔧 Follow-up questions: # Can this be fixed in a future Firefox update? Will it be addressed? # Is there a way to fix or configure this behavior right now via browser(settings, configs)? # Is there an extension or workaround that can restore the \r\n format without manual scripting? Affected apps: * ChatGPT * Google Spreadsheets * Trello * ProtonMail (regular text copying) * (more) Thanks in advance for any clarification or suggestions!