I've tried to get an idea of the issues you are having, from your posts in other threads. It looks like your problems are not just the BridgeOS KPs. If you find there's no possible replacement, then I'd try to diagnose if there's something wrong in your hardware, or if it's a matter of suffering SW/FW bugs because of installing software that might cause problems. If I were you, I'd wipe the hard disk completely, and I'd install MacOS from scratch. Then I'd try to install only the software that I'd really need, giving preference to applications that don't have a installer (installers shouldn't exist for third-party software in MacOS, IMHO). If you really need applications that have a installer, give preference to those that have a good reputation with their Mac support.
Btw, I see you mention DropBox in your posts. I'd try to get DropBox out of the game if you install MacOS from scratch. DropBox has a web interface that is not that hard to use (in fact I've avoided installing DropBox in all my Macs except in my employer iMac at my office desk, because I don't like the idea of third-party software running at boot time or at session start... I always try to avoid the clutter for which Windows is famous). I always use DropBox through the web interface, except in my employer iMac where they required us to install the software.
You also mention problems with Safari. Again, when installing from scratch, I'd avoid all kinds of extensions/add-ons/codecs/etc/etc, and leave Safari pure as water. Also, all kinds of social networks, chatting, and Internet-related software, I wouldn't install anything of that.
If after this, you are getting the same issues, I'd say you hardware has some defect... and it certainly doesn't look like the BridgeOS KPs that are discussed in this thread... you are facing something else.
