For the second time in the last few months the 'urgent update' kept coming up and constantly interrupting streaming and other internet use, every time I open firefox and during use on any website. When I clicked to update it did so but afterwards I could double click on any mozilla firefox symbol and it would not open. I had to uninstall and reinstall again from home page to make it work again. What is annoying is the fact that I know it wont take long before the update reminder will pester me again and that I have no way to stop it doing so, except uninstall and reinstall. What a nuisance.