I put a support ticket in to Xmarks weeks ago because of the problems with the WebExtensions version. They were totally wishy-washy and said they were aware of the problem and working on it. I get sync errors, duplications and big messes to fix, and it's all due to WebExtensions. If I use it in Chrome (which I hate) it works fine. Firefox is such a big part of the browser share don't you think that this problem should be fixed or just close the damn doors and let us all go find another solution? It's a total S**T SHOW and it doesn't full your customer base with warm fuzzies and confidence. I am coming up again for renewal, and again I am shopping for another solution.