With over 60% market share, Chrome is the undisputed king of web browsers. A key factor behind this is Google GOOGL +0.22%’s commitment to keeping it seamlessly updated with essential fixes and optimisations, but now the company has admitted Chrome’s latest upgrade comes with an unavoidable nasty surprise…

In a blog post, Google has admitted the newest version of Chrome rolling out to customers worldwide is going to consume up to 13% more of your system memory. For a browser whose biggest failing has long been its excessive memory consumption (1,2,3,4,5), this is the last thing users will want. Especially those with older systems and less RAM.

Google also confirmed this is a cross-platform change and will apply to Chrome on Windows, Mac, Linux, and Chrome OS. The last of these could be particularly impacted as Chrome OS systems often ship with only 4-8GB of RAM.

So why has Google done this?

It’s all in the name of security. The new, more bloated Chrome contains a feature called ‘Site Isolation’ which combats the serious Spectre vulnerability which exposes computers at a chip level.