Photoshop CS5 inactive

Apple has not yet, (and may not) updated their Legacy Java 6 solution to include Mojave. And Adobe has not regression tested the now ancient CS5 against any version of OSX/macOS for years. There is a real possibility that CS5 is now toast on Mojave, and Adobe now requires 2018 versions of their products for Mojave compatibility. The RoaringApps site has no information on CS5 compatibility with Mojave.

Your options at this point are:

• Adobe subscription to 2018 products
• Non-Adobe replacement applications (non-subscription, and as needed). Most have free trials from their vendor site where not free.:
  • Affinity Designer
  • Affinity Photo
  • Affinity Publisher (when out of beta)
  • GIMP (free)
  • Pixelmator
  • PDF Editor

    PDFpen/PDFpenPro

  • Other as needed
• Boot into a separate partition of a version of macOS that CS5 is fully compatible without Apple security or browser updates.

I just installed the JavaForOSX 2017-001 installer on my Mojave 27" iMac without a problem.

Try downloading again from the link above and install it from the Safe Mode.

Just get the Adobe CC Photography plan with Photoshop and Lightroom for $10/month. It's worth it to always be on the latest version and it's not a lot of money if you use them all the time. These old CS5 and CS6 versions will not work forever.

Adobe has not supported CS5 in years and it is not Apple's responsibility

to insure operability of 3rd party software, that is the developers

responsibility.

Be happy that your 8 year old, no longer supported software has worked

until now and had a good run.

I installed the Java runtime on Mojave and my CS5 apps are working. You do not have to keep throwing money at Adobe for the subscription model that everyone but Adobe despises.