Firefox 55.0.3 (32 bit) Not support plugin of Foscam IP Camera and NVR
I install plugin from IP camera and NVR (Foscam) but no plugin in firefox (55.0.3 32bit). and Firefox old version (53.X.X and 54.X.X) can install this plugin to firefox. How to solving problems.
Wšykne wótegrona (1)
This may be your problem,
Firefox v52+ disables all plugins except for Flash Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? {web link}
Install Older Version Of Firefox {web link} Be sure to read everything here.
If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.
You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements