I really hate Firefox's attempts to look like Chrome.
I had to look around the interface trying to find how to re-enable the "Menu Bar"
You have to click on that stupid icon that looks like 3 horizontal lines, which may appear at the top or the bottom of Firefox.
https://support.mozilla.org/en-US/kb/what-happened-to-the-file-edit-and-view-menusI've also had to add 3 different add-ons simply to make Firefox as useful as it used to be by default:
1. Classic Theme Restorer (allows you to customize Firefox and make it look like it used to -- or reasonably close to it)
2. Downloads Window (restores the download box that they replaced with that stupid blinking arrow in the address bar)
3. Element Properties (restores Properties to the right-click menu)
And that's in addition to security-related add-ons like AdBlock and Better Privacy.