Yes this is STILL a big problem and is not a "browser" limitation. It's a failure of quickbooks to code properly. The "soft limit" of line items is about 100 items. beyond that forget about trying to make changes to an invoice unless you're patient enough to wait for 10 seconds after every mouse click. Who ever wrote that code never imagined anyone would need to sell someone more than a dozen different things at once. Ridiculous. It really hurts operations who can't afford enterprise scale software for their mom and pop business that sells complex kit products that contain many many small items that are tracked in inventory.