Are you using Everhour?
I'm asking because we do our best to support the most popular browsers: Chrome, Firefox and Safari. We do not force you to use one. I.e. we offer same functionality in your preferred browser.
But each browser has its own features and ecosystem. Chrome is the easiest from tech perspective. Safari for example has a very strange review policies. Judge for yourself, as soon as we release a new version of our extension, Chrome releases it within an hour and does it automatically. In Safari, we need to send it for review each time and wait for a week or two. During this time we can release a few more updates.