On Sat, 12 Feb 2022, Curt wrote:
https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources Firefox may use more system resources if it's left open for long periods of time. A workaround for this is to periodically restart Firefox. You can configure Firefox to save your tabs and windows so that when you start it again, you can start where you left off.
what this quote doesn´t mention is tabs opened as ´private browser´ tabs won´t preserved.
-- Felmon Davis Verbum sat sapienti.