fixup! Add CI for Base Browser

    else:

        raise ValueError(f"Failed to extract version from reference '{reference}'.")

    tag = f"FIREFOX_{firefox_version.replace('.', '_')}_"

    major_version = firefox_version.split(".")[0]

    minor_patch_version = "_".join(firefox_version.split(".")[1:])

    remote_tags = git("ls-remote --tags origin")

    # Each line looks like:

    # 9edd658bfd03a6b4743ecb75fd4a9ad968603715  refs/tags/FIREFOX_91_9_0esr_BUILD1

    pattern = rf"(.*){re.escape(tag)}(.*)$"

    pattern = (

        rf"(.*)FIREFOX_{re.escape(major_version)}_{re.escape(minor_patch_version)}(.*)$"

    )

    match = re.search(pattern, remote_tags, flags=re.MULTILINE)

    if not match:

        # Attempt to match with a nightly tag, in case the ESR tag is not found

        pattern = rf"(.*)FIREFOX_NIGHTLY_{re.escape(major_version)}(.*)$"

        match = re.search(pattern, remote_tags, flags=re.MULTILINE)

    if match:

        return match.group(0).split()[0]

    else:

        raise ValueError(

            f"Failed to find reference specifier for Firefox tag '{tag}' from '{reference}'."

            f"Failed to find reference specifier for Firefox tag of version '{firefox_version}' from '{reference}'."

        )