I tried updating Firefox and it failed me. At the end of the day of work I did an automatic update. I shutdown my computer and the next day Firefox worked intermittently as in it would load pages and some it wouldn't load. I thought it was my internet connection and verified in another browser. The internet connection was okay, it was a Firefox issue. Then I notice the Firefox icon was a generic icon. I'm now lost all my bookmarks, which I thought I had in Firefox sync and open windows / tabs. This is a bit frustration that Firefox failed like this and caused me to lose data.