The provided text appears to be a stack trace from a web driver error, specifically a NoSuchWindowError. It's not a passage that can be "cleaned up" in the traditional sense of grammar and punctuation correction. The information is already structured as a technical log.

To make it more understandable, we can reformat it:

Improved Formatting:

The error message indicates a NoSuchWindowError. This suggests the webdriver was unable to find a browser window to interact with. The stack trace provides more detail on the error's origin:

• Browsing context discarded: The browser context (e.g., the tab or window) has been closed or lost.
• Stack Trace (abbreviated for clarity): The error originated within the WebDriver and GeckoDriver components. Specific locations in the relevant .sys.mjs files are listed but are likely not helpful without access to the source code.

To resolve this, check:

• Whether the target window or tab still exists. If the script is trying to interact with a window that's been manually closed or automatically closed by the browser, this error will occur.
• The timing of your commands. Ensure that the window has fully loaded before attempting interactions with it.
• Your webdriver configuration. Confirm the WebDriver is correctly configured and connected to the browser instance.

The full stack trace is valuable for debugging but requires in-depth knowledge of the WebDriver and GeckoDriver internal workings to interpret fully. The key takeaway is that the browser window the script was trying to use no longer exists.