5 articles, every claim sourced
Every article about browser memory contains a benchmark table. Almost none of them contain a methodology, and the numbers get copied between sites until they look like consensus. Ours were invented too, and we removed them rather than replacing them with different invented numbers.
START HEREChrome Memory Saver Is On and Chrome Is Still Slow. Now What?- it covers what Memory Saver actually does, and admits where an earlier version of it was wrong.
We have not published a test method, so we do not put our own number on it. The articles show you how to measure your own browser instead.
Firefox shipped vertical tabs, tab groups, split view, local AI grouping and built-in Containers in eighteen months, and leaves nearly all of it switched off. Including the tab unloading that only runs on Windows, and the one thing Firefox still has no answer for.
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Chrome frees memory in process-sized units, not tab-sized ones. Chromium's source says which of your tabs share a process, the six things that keep one running after you close its tab, and why your Task Manager will not show the drop either way.
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Google describes the three Memory Saver levels as "a longer period of time" and never says how long. Chromium's source does: 6 hours, 4 hours, 2 hours, plus three more gates most tabs never pass.
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What Chrome, Firefox, Edge, Vivaldi, Brave, Opera, Safari and Zen each give you for handling tabs, sourced and dated. Including Chrome's vertical tabs landing in April 2026, the Collections feature Edge deleted in June, and why Arc is now a warning rather than a pick.
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Memory Saver on and Chrome still crawling? Here is exactly what it fixes, where it stops, and the one-click workflow that clears 50 tabs without losing one.
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