Cross‐browser Support

Web APIs (V3)

Commands

Function/Event	Chrome	Firefox	Safari
onCommand	Yes	63	14

Runtime

Function/Event	Chrome	Firefox	Safari
getURL	22	45	14
id	22	45	14
onInstalled	22	55	14
onMessage	26	45	14
onStartUp	23	52	14
sendMessage	26	45	14

Scripting

Function/Event	Chrome	Firefox	Safari
ExecutionWorld.MAIN	102	❌	15.4
executeScript	88	102	15.4

Storage

Function/Event	Chrome	Firefox	Safari
local	Yes	48	14
onChanged	Yes	45	14

Tabs

Function/Event	Chrome	Firefox	Safari
create.url	5	57	14
query.active	Yes	45	14
query.currentWindow	19	45	14
query.lastFocusedWindow	19	45	14
query.url	Yes	56	14
sendMessage	Yes	45	14

Manifest V3 Keys

Manifest Key	Chrome	Firefox	Safari
action.default_icon	88	109	15.4
action.default_popup	88	109	15.4
background.service_worker	88	❌	15.4
background.page	❌	48	14
browser_specific_settings.gecko.strict_min_version	❌	42	❌
minimum_chrome_version	Yes	❌	❌
commands._execute_action	88	Yes	❌
content_scripts.js	Yes	48	14
content_scripts.matches	Yes	48	14
description	Yes	48	14
host_permissions	88	109	15.4
name	Yes	48	14
permissions -> scripting	88	102	15.4
permissions -> storage	Yes	48	14
version	Yes	48	14
web_accesible_resources.matches	88	109	15.4
web_accesible_resources.resources	88	109	15.4