RE: Sametime Web Plugin issues IE and Firefox Ben Williams 28.Nov.16 12:30 PM Lotus Notes Usability Issues 9.0Windows
Open a PMR firstly.
What version of Sametime do you have installed? Sametime 18.104.22.168 used the webplayer plugin for web browsers which was very flaky. Sametime 9.0.1 requires you to install a 30MB installer for the webplayer plugin and that works for all browsers. This appears to be more stable process. You may still have issues with local admin rights but that's a pain for most installers on windows.
Most web browsers are pulling support for these kind of plugins which means you're only going to get a worse level of service if you are on Sametime 22.214.171.124.