w3c/webextensions Issues

Last updated Nov 28, 2025, 6:03:03 AM UTC.

This repository doesn't have the Priority: Eventually label that's used to mark an issue as triaged without giving it an SLO. Until that's added, this summary uses heuristics to guess if each issue has been triaged.

59 out-of-SLO untriaged issues

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Issue	Title	Within SLO	On maintainers' plates for	Time left	Time past SLO
#17	storage.sync API varies greatly from browser to browser	❌	4.4 years		4.4 years
#27	`tabs.duplicate()` must implement a way to duplicate at a given `index` and with a given `active` state	❌	4.4 years		4.4 years
#28	`tabs.onUpdated`’s callback argument `changeInfo` should contain `favIconUrl: null` when tab loses its favicon	❌	4.4 years		4.4 years
#53	Decompose manifest.json spec work into action items members can PR	❌	4.3 years		4.3 years
#55	Inconsistent behavior of `activeTab` on refresh/navigation across browsers	❌	4.3 years		4.3 years
#56	Proposal: grant access to underlying Hunspell/spellchecker, user dictionaries, and create new spellcheck API	❌	4.3 years		4.3 years
#74	META: `content_security_policy` for extension contexts	❌	4.2 years		4.2 years
#94	Security: Make the man-in-the-middle in the webextension optional	❌	4.2 years		4.1 years
#99	Inconsistency: custom `content_security_policy` browser restrictions	❌	4.2 years		4.1 years
#100	Inconsistency: Mandatory manifest keys	❌	4.2 years		4.1 years
#103	Use cases and features for registerContentScripts() (early conf, parameters, WorkerScope injection, tab filtering, CSP)	❌	4.1 years		4.1 years
#121	Determine what manifest properties every vendor agrees on	❌	4.1 years		4.1 years
#131	Documentation: get a complete list of all locales supported in each browser	❌	4.1 years		4 years
#143	Allow native messaging hosts to continue running while an extension is inactive and send messages to the extension	❌	3.9 years		3.9 years
#147	Inconsistency: determine when non-persistent background pages get suspended	❌	3.9 years		3.8 years
#157	non-blocking webRequest use case - WhoTracks.Me	❌	3.8 years		3.8 years
#168	Blocking webRequest use case - alternative authentication schemes	❌	3.7 years		3.7 years
#199	Streamline and optimise after-install dialog `action` buttons	❌	3.6 years		3.6 years
#200	How should WebExtensions approach breaking changes?	❌	3.6 years		3.6 years
#219	Inconsistency: Right-click missing `Options` menu item for the browser extension	❌	3.5 years		3.5 years
#223	Proposal: if extension has `"storage"` permission it should be allowed to use Web Storage API and Cookies API	❌	3.5 years		3.5 years
#230	Inconsistency: `browser.runtime.OnInstalledReason`	❌	3.5 years		3.4 years
#254	Inconsistency: some functions accept optional arguments while other take in only `{}`	❌	3.3 years		3.3 years
#255	Blocking webRequest usecase - Quick prototyping / deployment of defenses against new security threats (e.g. Leakuidator+)	❌	3.3 years		3.3 years
#261	API to retrieve user email or well-known identifier on Enterprise deployments	❌	3.3 years		3.2 years
#306	scripting.InjectionTarget.workers property to inject WorkerScope(s)	❌	3.1 years		3.1 years
#365	Support "protocol_handlers" in manifest	❌	2.7 years		2.7 years
#378	Proposal: Privileged navigator.clipboard for content scripts	❌	2.6 years		2.6 years
#388	Web storage in extensions: quota, eviction and unlimitedStorage	❌	2.6 years		2.5 years
#399	setUninstallURL length update	❌	2.5 years		2.5 years
#425	Inconsistency: different permissions can be optional permissions across browsers	❌	2.4 years		2.3 years
#429	Inconsistency: incognito in proxy.settings	❌	2.4 years		2.3 years
#452	idle API: no way to reset the interval to default after idle.setDetectionInterval()	❌	2.2 years		2.2 years
#480	Proposal: A persistOnNavigation property for the action API	❌	2.1 years		2.1 years
#496	Proposal: Include documentId in Tab object	❌	2 years		2 years
#520	Increase maximum total size (QUOTA_BYTES) for `storage.sync`	❌	1.9 years		1.9 years
#550	Proposal: API for setting sidebar title and icon	❌	1.8 years		1.8 years
#551	Proposal: browser.commands.clear() to clear browser shortcuts	❌	1.8 years		1.8 years
#584	Add change history to charter	❌	1.6 years		1.6 years
#607	userScripts API: injection blocklist+allowlist just for this API	❌	1.6 years		1.5 years
#612	Expose openOrClosedShadowRoot for userscripts	❌	1.5 years		1.5 years
#618	sidePanel API: site-specific panels	❌	1.5 years		1.5 years
#631	"side_panel":{} declaration should automatically grant sidePanel permission	❌	1.5 years		1.5 years
#699	Allow object as second i18n.getMessage() argument	❌	1.2 years		1.2 years
#702	Namespace for experimental APIs	❌	1.2 years		1.1 years
#807	Proposal: add `OPTIONS_UI` as `ContextType`	❌	7.8 months		7.6 months
#821	websites.thirdPartyCookiesAllowed can provide misleading information to developers	❌	6.8 months		6.6 months
#831	Canonical header names	❌	6.2 months		6 months
#836	Allow extensions to track their own disable/uninstall events	❌	6.1 months		5.8 months
#863	Proposal: add chrome.tabs.captureTab() API to Chromium	❌	3.5 months		3.2 months
#879	feature request: browser.cookies.onChanged - return previous cookie properties on overwrite/update	❌	2 months		1.7 months
#897	Add support for `tabs.create({ incognito: true })`	❌	3.8 weeks		2.8 weeks
#898	Add a way to synthesize user gesture on a page as extension	❌	3.8 weeks		2.8 weeks
#904	Backlog: issues to address for manifest v4	❌	2.5 weeks		1.5 weeks
#907	A `window` created by chrome.windows.create() doesn't match the web spec for `window.menubar`	❌	1.5 weeks		3 days
#908	[declarativeNetRequest] Ability to redirect web link navigations to a new tab/window	❌	1.5 weeks		3 days
#912	A way for `chrome.windows.create()` to set normal position with minimized/maximized windows, used when the user restores the window	❌	1.1 weeks		23 hours
#913	Publish minutes of 2025-11-20 meeting	❌	1.1 weeks		13 hours
#914	Agenda discussion for public meeting on 2025-12-04	❌	1.1 weeks		13 hours
#917	Proposal: Add `management.readOnly` permission for read-only access to management API	✔	19 hours	0.9 weeks
#918	Grant time-based user activation from extension events that grant a user gesture	✔	19 hours	0.9 weeks
#919	Should user gestures be curried between contexts?	✔	19 hours	0.9 weeks
#920	Should extension APIs consume user activation?	✔	19 hours	0.9 weeks