I'm using Ubuntu 16.04 64 bit with Mozilla Firefox 64 bit version 52 (not ESR) and Java JDK 1.8.0_112

For me, the plugins like Java and VLC came back after doing this.

Is there any other was to install Firefox ESR 52 32-bit and also install Sun Java 32-bit on Ubuntu 16.04.2 LTS 64-bit without uninstalling Firefox 52 64-bit? Install Firefox 32-bit in terminal: sudo apt install firefox:i386īut installing Firefox 32-bit will uninstall Firefox 64-bit, which I would like to keep.ĭownload and extract Firefox 52 ESR 32-bit from 2. I know I can install Firefox 32-bit like using: If it is, I need Firefox 32-bit version and not Firefox 64-bit version. I know for sure Firefox 32-bit only supports Sun Java on Windows, but not sure if this is also a limitation on Ubuntu. Ordinary Firefox 52 does not support Java as browser plugin anymore, because NPAPI was removed ( source). My computer has Ubuntu 16.04.2 LTS 64-bit and Firefox 52 64-bit.įor one of the government web sites, because it is using browser Java plugin to sign documents, I need to install: