We can proceed to install and overwrite the older version. Now that the older version has been downloaded to local storage. Then go to Help > About Firefox, and you should find the architecture mentioned there. * If you aren’t sure about system architecture, tap on the More menu at the extreme right of Firefox.

exe file corresponding to your selected version. As for this guide, we are choosing English US, so it translates to en-US.

Select the one that matches your CPU architecture.

(say, Windows)įurthermore, you will see two different architectures*, 32-bit and 64-bit under Windows.

Choose the directory per your system configuration.

You should now see various builds of Firefox corresponding to your OS.

Please scroll to the version of your choice and select it.

It hosts older browser builds, some dating from 5-6 years old.

Open the Firefox directory listings on the web browser.

We can browse through the build number to download the required version. I assume the build error is because the bootstrap didn't complete.Īny direction on where to look to get around these would be really appreciated.Mozilla Firefox automatically archives the order builds or releases in its repository that we can download for free. ValueError: need more than 2 values to unpack

Here are the errors I'm getting: 'mach bootstrap' =>Ĭould not find artifacts for a toolchain build named `win64-clang-cl`.įile 'c:/mozilla-source/release/build/moz.configure/nfigure', line 580, in split_tripletĬpu, manufacturer, os = triplet.split('-', 2) If anyone can point me to some documentation on how to build an older version, that would be great. I could not find the documentation online to build this version, so have been trying the follow the latest documentation as a guide on what to do. This is commit I'm building : hg clone -r 239e434d6d2b release Please could someone provide some guidance on how to solve the issues? Both bootstrapping and building fail using the mach tool. I'm having issues building an older version (legacy requirements) of firefox.

Firefox old version