I've managed to reproduce this issue using the example given in ticket https://stackoverflow.com/questions/299811/why-does-the-checkbox-stay-checked-when-reloading-the-page(from Comment 4) on the latest versions Nightly and Firefox on Windows 10 x64. Setting as NEW.
Bug 1798833 Comment 6 Edit History
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I've managed to reproduce this issue using the example given in ticket https://stackoverflow.com/questions/299811/why-does-the-checkbox-stay-checked-when-reloading-the-page(from Comment 4) on the latest versions Nightly 111.0a1 and Firefox 109.0 on Windows 10 x64. Setting as NEW.