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Dell and Lenovo may limit mid-range laptops to 8GB DDR5 RAM in response to rising memory prices
(www.notebookcheck.net)
This is a most excellent place for technology news and articles.
Get yourself the ‘auto discard tabs’ extension.
Tbf Firefox seems to have started using much more memory a year or so ago: I could easily hit over 200 tabs, now fifty are a problem. Though it could just be me having switched to the developer edition.