Recommending use of Firefox 38 ESR with IBM Notes Browser Plug-in

Regarding to this IBM Flash the IBM Notes Browser Plugin becomes disabled when using FF 43, because it´s not verified by Mozilla.


With Mozilla Firefox 43, IBM Notes Browser Plug-in becomes disabled, as it’s not verified by Mozilla.


Firefox 43 contains changes to disable any add-on which is not signed and verified by Mozilla.  Due to this, if you have installed the IBM Notes Browser Plug-in, and upgraded to Firefox 43, the add-on will become disabled. Once this happens, you will no longer be able to open Notes content inside Firefox.
As we work with Mozilla in resolving this, we would strongly recommend that you use the ESR version of Firefox, the latest of which is Version 38.5.2 ESR.

The ESR release does not have the add-on signing enforced for now, and may not have it until Firefox ESR 45, as mentioned in

This issue has been raised with Mozilla and we will update this note once the issue is resolved.

Bug 1231849 – Extension update fails for disabled side loaded extension (affecting signed extension release) :

1. Ensure you stay on the Firefox ESR release
2. If you want to use a non-ESR version, use Version 42 and disable auto-updates.
3. Workaround for Firefox 43 :- In about:config set xpinstall.signatures.required=false

IBM Notes and Domino V9.0.1 adds IBM Client Application Access and Macintosh 64-bit processor support for IBM Notes

IBM® Notes® now runs on Macintosh 64-bit processors using Mac OS X operating systems, performance and memory capabilities inherent with Macintosh 64-bit processors.

IBM Client Application Access offers a lightweight solution for accessing your Notes and IBM Domino® applications. IBM Client Application Access delivers the following benefits:

  • Allows users to access IBM Domino applications without using the full Notes client.
  • Lowers resource consumption.
  • Enables you to work with your existing Notes and Domino applications unmodified.
  • Requires no retraining for users and saves your organization from costs associated with rewriting existing applications.
  • Offers a simple, quicker installation and setup at less than 80 MB.
  • Enables support for launching mail and forwarding documents using IBM iNotes®
  • Supports Microsoft™ Internet Explorer, Mozilla Firefox, and Mac OS X.
  • Uses system-installed Java™ Virtual Machine (JVM) when needed for applications.

 The full announcement can be found here