It's a large code base, but it doesn't require hundreds of developers working concurrently to keep it up to date. Web standards move fast, but not that fast.
Take a look at Ladybird. There's a browser being built from scratch with a small team (less than 10?)
If Mozilla fired 90% of it's employees and kept the 10% to actually work on Firefox, it could be a great browser.
Have you taken a look at Firefox's bug bug tracker?[1] Keeping up with Web standards is nothing compared to the tremendous amount of work required to maintain a cross-platform web browser.
It's a large code base, but it doesn't require hundreds of developers working concurrently to keep it up to date. Web standards move fast, but not that fast.
Take a look at Ladybird. There's a browser being built from scratch with a small team (less than 10?)
If Mozilla fired 90% of it's employees and kept the 10% to actually work on Firefox, it could be a great browser.