Ah yes, thank you, finally! I can't emphasize enough how much I've been waiting for this. I've even tried pushing it via the dev-tools uservoice as a develope

Ah yes, thank you, finally! I can't emphasize enough how much I've been waiting for this. I've even tried pushing it via the dev-tools uservoice as a developer tool instead of a privacy tool, since you often need to test with multiple sessions at the same time. No reaction. There is still the very real issue of fingerprinting across containers, which they point at towards the end of the article, but this might just be enough for me to drop Chrome completely and get my Firefox set up again the way I like it.