Older Versions Of Firefox For Mac English Version

Mozilla, Firefox's creator, cautions computer users that reverting to old versions of the browser exposes them to security risks. However, some people may still prefer to use older Firefox versions. For example, you might have a business tool add-on that works only in older Firefox versions, or you may want to install a previous version if a new one has problems. If you'd like to replace your existing Firefox with an older version, you can easily download and install one from Mozilla's archived programs Web page.

It's extremely important for you to view how your website looks on multiple platforms. Web designers often fall into the trap of assuming that their development platform is a representative sample. Setting up a dev environment. This holds true even within browser versions. Take Firefox for example. Over the past few years, it has migrated to a rapid release schedule much like Google Chrome. As a result, websites that render in a certain manner on one version might not replicate that behavior on another. I'm talking about plain-vanilla desktop versions here – not mobile ones.

Mar 19, 2018  Click a number on this page to go to the download page for that version of Firefox. For example: you would click 45.1.0esr/ to go to the download page for Firefox version 45.1.0. In the new page, you see Firefox versions ranging from the very latest, right back to version 2! Find the package you are interested in, and click on the link. Once inside, find the language you're interested in and download the corresponding 'paf.exe' file. Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives: Install Firefox Extended Support Release. Firefox Extended Support Release (ESR) is an official version of Firefox developed for large organizations like universities and businesses.

So how do you go about testing your website on different versions of the same software? A program like Firefox doesn't easily tolerate different versions of itself running on the same machine. What we need is a quick and easy way to 'sandbox' different versions of Firefox so as to run them without interfering with each other. Fortunately, Firefox also releases a version of itself known as 'PortableApps'. The idea being that you should be able to carry around your entire Firefox browser with all of its configurations and settings on a flash drive so as to be able to pick up where you left off on a new computer. Let's take a look at how to use the PortableApps platform and test your website on an older version of Firefox – specifically, version 27 (just as an example) Installing the PortableApps Platform The first step is to install the PortableApps platform. You can do that by downloading it from this link here:.

Once you've downloaded it and started the installation, you can choose the install location along the way as shown in the screenshot here: In this example, for convenience's sake I'm going to use a folder on my computer, but you can just as easily install it directly to a USB flash drive instead. In fact, that is the standard use case scenario for PortableApps. Continue with the installation and when it's done, it's time to download the version of Firefox that we are interested in. Downloading Older Firefox Versions You can get a comprehensive list of PortableApps applications by visiting the following URL:.

The advantage of going through this link rather than using the inbuilt application browser of the PortableApps program, is that you can choose the version to download. For example in the list above, select 'Mozilla Firefox, Portable Ed.' In the new page, you see Firefox versions ranging from the very latest, right back to version 2! Find the package you are interested in, and click on the link. Once inside, find the language you're interested in and download the corresponding 'paf.exe' file. This is a regular EXE file that will locate the PortableApps installation and install into it. The setup is just like a regular program and when you finish, run it as shown below: To test which version we've actually installed, I've clicked the 'Help -> About' menu item and we can confirm that it is indeed version 27 as intended.