I am unable to use the pinch feature on my Mac to resize the Firefox browser. I read the community blog about another Mac user who experienced the same problem and his solution is beyond my expertise. Nevertheless, I would really like to use Firefox instead of Chrome or Safari because I enjoy the independent community branding of Firefox. However, without the simple ability to use a primary feature of the Apple computer to resize the browser makes it a more unlikely transition. I have never had resizing issues with Chrome -- why is it so with Firefox? And why is it so laborious to accomplish?

Please help. I really want to a sole user of Firefox. Thanks