I've been running a ~7 year old laptop for occasional browsing. Chrome is unable to seek properly in video playback (gives page unresponsive after a while) and

I've been running a ~7 year old laptop for occasional browsing. Chrome is unable to seek properly in video playback (gives page unresponsive after a while) and lags randomly when loading large pages, I suspect due to RAM allocations. Old Firefox played videos fine, but lagged on many page loads. I was about to conclude it was just too old to browse the web decently, but this... this seems incredibly usable. Thanks Mozila, I'm definitely installing this thing on my main, much more modern machine tomorrow.