Editing Gecko (software) (section)

==Versioning==
After Gecko 2.0, the version number was bumped to 5.0 to match Firefox 5, and from then on has been kept in sync with the major version number for both Firefox and Thunderbird,<ref>{{cite web |title = Gecko versions and application versions |url = https://developer.mozilla.org/en-US/docs/Mozilla/Gecko/Versions |work = [[MDN Web Docs|MDN]] |access-date = 2013-11-18 |archive-date = 2020-10-31 |archive-url = https://web.archive.org/web/20201031145622/https://developer.mozilla.org/en-US/docs/Mozilla/Gecko/Versions |url-status = dead }}</ref> to reflect the fact that it is no longer a separate component.<ref>{{cite web |title = Not much in new Thunderbird 5, but roadmap looks promising |url = https://arstechnica.com/information-technology/2011/06/not-much-in-new-thunderbird-5-but-roadmap-looks-promising/ |website = [[Ars Technica]] |date = 30 June 2011 | access-date = 2018-02-07 }}</ref>