AXOIM – Parse Firefox Keyword Search History as a separate artefact

Google Chrome has an artefact 'Chrome Keyword Search Terms' which contains URLS of keyword searches. In my example all the URLs start with the following: https://www.google.com/search?q= Edge has an artefact 'Edge Chromium Keyword Search Terms' which contains URLS of keyword searches. In my example all the URLs start with the following: https://www.bing.com/search?q= https://uk.search.yahoo.com/search?p= https://duckduckgo.com/?q= https://www.google.com/search?q= Firefox does not have an equivalent artefact 'Firefox Keyword Search Terms'. However, in the 'Firefox Web History' there are URLs with similar structure to the above as follows: https://www.bing.com/search?q= https://uk.search.yahoo.com/search?p= https://duckduckgo.com/?q= https://www.google.com/search?q= https://www.google.co.uk/search?q= Why are these not being separated and present as 'Firefox Keyword Search Terms'?