2031721 - [meta] Migrate DevTools to Fluent (away from properties)

Status: NEW

(DevTools :: General, task)

Description

[Alexandre Poirot [:ochameau]]

DevTools no longer use any .dtd file, but still involes a handful of .properties files:
https://searchfox.org/firefox-main/search?q=&path=devtools%2F**.ftl&case=true&regexp=false
Today, April 2026, 30 of them (versus 17 .ftl):

	devtools/client/locales/en-US/accessibility.properties
	devtools/client/locales/en-US/animationinspector.properties
	devtools/client/locales/en-US/boxmodel.properties
	devtools/client/locales/en-US/changes.properties
	devtools/client/locales/en-US/components.properties
	devtools/client/locales/en-US/debugger.properties
	devtools/client/locales/en-US/device.properties
	devtools/client/locales/en-US/dom.properties
	devtools/client/locales/en-US/filterwidget.properties
	devtools/client/locales/en-US/font-inspector.properties
	devtools/client/locales/en-US/har.properties
	devtools/client/locales/en-US/inspector.properties
	devtools/client/locales/en-US/jsonview.properties
	devtools/client/locales/en-US/layout.properties
	devtools/client/locales/en-US/memory.properties
	devtools/client/locales/en-US/menus.properties
	devtools/client/locales/en-US/netmonitor.properties
	devtools/client/locales/en-US/network-throttling.properties
	devtools/client/locales/en-US/responsive.properties
	devtools/client/locales/en-US/shared.properties
	devtools/client/locales/en-US/sourceeditor.properties
	devtools/client/locales/en-US/startup.properties
	devtools/client/locales/en-US/styleeditor.properties
	devtools/client/locales/en-US/toolbox.properties
	devtools/shared/locales/en-US/accessibility.properties
	devtools/shared/locales/en-US/debugger.properties
	devtools/shared/locales/en-US/eyedropper.properties
	devtools/shared/locales/en-US/screenshot.properties
	devtools/shared/locales/en-US/styleinspector.properties
	devtools/shared/locales/en-US/webconsole.properties

Comment 1

[BugBot [:suhaib / :marco]]

The Bugbug bot thinks this bug should belong to the 'DevTools::Netmonitor' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.