It's all ridiculously tiny. I've seen hacks for other products in CC but not Fireworks.
Actually I did find a hack that involved editing the registry and manifest files but it didn't work for me. I think it's ridiculous that this has been an issue for at least 2 years and Adobe hasn't fixed it.
And really the whole CC suite is too tiny, but the first one I want fixed is Fireworks.
As you know, Fireworks is a dead in the water application: development was halted by Adobe in May 2013. It is no longer supported, and was developed before Retina screens became popular. Thus, retina support is never going to happen for Fireworks, unfortunately.
If the manifest trick doesn't fix it, then I am afraid you will just have to live with it. Sorry.
Thank you. And, actually, I didn't know Fireworks was dead. It's all I've used the past 17 years for web design, image editing (for websites). What do people use instead? Photoshop I guess. At my age, and trying to semi-retire, learning new software is not what I look forward to. At least not when I'm swamped with work.