MANIFEST_UNUSED_UPDATE
notice update_url ignored in manifest.json CORRUPT_ICON_FILE
warning Icons must not be corrupt MANIFEST_CSP
warning content_security_policy in manifest.json means more review MANIFEST_CSP_UNSAFE_EVAL
warning usage of 'unsafe-eval' is strongly discouraged MANIFEST_PERMISSIONS
warning Unknown permission MANIFEST_OPTIONAL_PERMISSIONS
warning Unknown optional permission MANIFEST_HOST_PERMISSIONS
warning Unknown host permission NO_MESSAGES_FILE
warning When default_locale is specified a matching messages.json must exist NO_DEFAULT_LOCALE
warning When _locales directory exists, default_locale must exist UNSAFE_VAR_ASSIGNMENT
warning Assignment using dynamic, unsanitized values UNSUPPORTED_API
warning Unsupported or unknown browser API DANGEROUS_EVAL
warning eval
and the Function
constructor are discouraged STRICT_MAX_VERSION
warning strict_max_version not required PREDEFINED_MESSAGE_NAME
warning String name is reserved for a predefined MISSING_PLACEHOLDER
warning Placeholder for message is not MANIFEST_FIELD_PRIVILEGEDONLY
warning A manifest field ignored on non-privileged extensions MANIFEST_FIELD_UNSUPPORTED
warning A manifest field is not supported (or not supported for the extension manifest_version) MANIFEST_PERMISSION_UNSUPPORTED
warning A manifest permission is not supported for the extension manifest_version MANIFEST_PERMISSIONS_PRIVILEGED
error A manifest permission is only allowed in privileged extensions MOZILLA_ADDONS_PERMISSION_REQUIRED
error The "mozillaAddons" permission must be specified in privileged extensions PRIVILEGED_FEATURES_REQUIRED
error Privileged features are mandatory for privileged extensions, but none has been detected MANIFEST_FIELD_PRIVILEGED
error A manifest field is only allowed in privileged extensions WRONG_ICON_EXTENSION
error Icons must have valid extension MANIFEST_UPDATE_URL
error update_url not allowed in manifest.json MANIFEST_FIELD_REQUIRED
error A required field is missing MANIFEST_FIELD_INVALID
error A field is invalid MANIFEST_FIELD_DEPRECATED
error A field is deprecated MANIFEST_BAD_PERMISSION
error Bad permission MANIFEST_BAD_OPTIONAL_PERMISSION
error Bad optional permission MANIFEST_BAD_HOST_PERMISSION
error Bad host permission MANIFEST_INSTALL_ORIGINS
error Invalid install_origins JSON_BLOCK_COMMENTS
error Block Comments are not allowed in JSON MANIFEST_INVALID_CONTENT
error This add-on contains forbidden content CONTENT_SCRIPT_NOT_FOUND
error Content script file could not be found CONTENT_SCRIPT_EMPTY
error Content script file name should not be empty NO_MESSAGE
error Translation string is missing the message INVALID_MESSAGE_NAME
error String name contains invalid characters INVALID_PLACEHOLDER_NAME
error Placeholder name contains invalid characters NO_PLACEHOLDER_CONTENT
error Placeholder is missing the content JSON_INVALID
error JSON is not well formed JSON_DUPLICATE_KEY
error Duplicate key in JSON MANIFEST_VERSION_INVALID
error manifest_version in manifest.json is not valid PROP_NAME_MISSING
error The name property is missing from manifest.json PROP_NAME_INVALID
error The name property is invalid in manifest.json, either because the string has leading/trailing whitespaces or because its length is too short (must be 2 non-whitespace characters) MANIFEST_DICT_NOT_FOUND
error A dictionary file defined in the manifest could not be found MANIFEST_MULTIPLE_DICTS
error Multiple dictionaries found MANIFEST_EMPTY_DICTS
error Empty dictionaries
object MANIFEST_DICT_MISSING_ID
error Missing applications.gecko.id
property for a dictionary KEY_FIREFOX_UNSUPPORTED_BY_MIN_VERSION
warning Manifest key not compatible with applications.gecko.strict_min_version
KEY_FIREFOX_ANDROID_UNSUPPORTED_BY_MIN_VERSION
warning Manifest key not compatible with Firefox for Android at applications.gecko.strict_min_version
PERMISSION_FIREFOX_UNSUPPORTED_BY_MIN_VERSION
notice Permission not compatible with applications.gecko.strict_min_version
PERMISSION_FIREFOX_ANDROID_UNSUPPORTED_BY_MIN_VERSION
notice Permission not compatible with Firefox for Android at applications.gecko.strict_min_version
IGNORED_APPLICATIONS_PROPERTY
warning Usage of both applications
and browser_specific_settings
properties RESTRICTED_HOMEPAGE_URL
error Linking to addons.mozilla.org in homepage_url
or developer.url
is not allowed RESTRICTED_PERMISSION
error A permission requires "strict_min_version" to be set to a specific Firefox version EXTENSION_ID_REQUIRED
error The extension ID is mandatory for Manifest Version 3 (and above) extensions HIDDEN_NO_ACTION
error The hidden
and browser_action
/page_action
(or action
) properties are mutually exclusive APPLICATIONS_DEPRECATED
warning The applications
property in the manifest is deprecated and will no longer be accepted in Manifest Version 3 and above. Use browser_specific_settings
instead. APPLICATIONS_INVALID
error The applications
property is no longer accepted in Manifest Version 3 and above VERSION_FORMAT_DEPRECATED
warning The version string should be simplified VERSION_FORMAT_INVALID
error The version string is not valid because its format is too complex. INCOGNITO_SPLIT_UNSUPPORTED
warning The incognito "split" value is unsupported in Firefox ADMIN_INSTALL_ONLY_PROP_RESERVED
error The browser_specific_settings.gecko.admin_install_only
property is reserved and can only be used in enterprise add-ons ADMIN_INSTALL_ONLY_REQUIRED
error The browser_specific_settings.gecko.admin_install_only
property must be set to "true" in an enterprise add-on DATA_COLLECTION_PERMISSIONS_PROP_RESERVED
error The browser_specific_settings.gecko.data_collection_permissions
property is reserved for future usage and cannot be used in an extension at the moment MISSING_DATA_COLLECTION_PERMISSIONS
notice The browser_specific_settings.gecko.data_collection_permissions
will be required in the future. Please add this key to the manifest NONE_DATA_COLLECTION_IS_EXCLUSIVE
error "none" must not be specified with other required data collection permissions
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