Firefox Download For Mac 10.10.5 _top_ ◎

YouTube frequently updates its video codecs. Firefox 78 supports VP9 but not AV1. To fix:

If you are still running , you may have noticed that modern versions of Firefox and other popular browsers no longer support your operating system. However, you can still download a functional version of Firefox to keep your vintage Mac connected to the web. The Best Version for OS X 10.10.5 firefox download for mac 10.10.5

You might be wondering if there are other options. There are, but Firefox wins for several specific reasons: YouTube frequently updates its video codecs

If you are stuck on 10.10.5 because you love an old Mac (e.g., 2009–2011 MacBook), consider these alternatives: consider these alternatives: Before downloading

Before downloading, confirm you are indeed on 10.10.5.