Related issue: The https://support.mozilla.org/en-US/kb/install-older-version-firefox article displays {for =fx113} content (a link to the Firefox 112 installer) in all Firefox versions, including older versions and also when viewed in Firefox version 114 or 115 (Version 115 was just added to the version picker). Content that is {for =113} is only supposed to display for Firefox 113.
Bug 1836594 Comment 2 Edit History
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Related issue: The https://support.mozilla.org/en-US/kb/install-older-version-firefox article displays {for =fx113} content (a link to the Firefox 112 installer) in all Firefox versions, including older versions and also when viewed in Firefox version 114 or 115 (Version 115 was just added to the version picker). Content that is {for =fx113} is only supposed to display for Firefox 113.