Recent Changes

Injecting a userscript now requires a special extension permission.
You can find instructions on how to enable this permission here.

Microsoft Edge

Added support for opening a local userscript file and tracking its changes on disk to speed up development

Workarounded an issue where repeated GM_xmlhttpRequests filled the browser's filtered_service_worker_events list with empty entries

Speed up recognition of the Allow User Scripts option being enabled

Any save or download now prompts for the optional download permission
Note: This can be disabled by setting Download Mode to Native

General

Model Context Protocol (MCP) support for AI tools
Note: requires Tampermonkey Editors browser extension (Firefox|Chrome) and a user action to enable it

Decoupled update checks from the actual update process; set “Automatic installation” as needed

Reduced the number of desktop‑notification alerts for script updates

Streamlined GM_xmlhttpRequest performance

Reworked GM_addElement to always return the created element and null in case of failure

Suppressed black‑listed and browser‑restricted pages from being shown as injectable

Added provisioning support for installing scripts via OS policies

Scripts with @run-at context-menu can now be launched from the popup menu

Improved the context menu update rate

Fixed header parameter and conflictAction handling in GM_download

GM_download now uses the initiator tab’s cookie store and got an anonymous option

window.focus now also brings the window to the front

Corrected handling of repeatedly‑navigating iframes

Fixed imports so external resources are never treated as importable userscripts

Enable importing files that contain only global settings

Fixed an issue where content scripts were not unregistered when the extension was globally disabled

Improved factory reset to clear additional stored data

Resolved multiple field‑reported crashes

Tweaked in-page notifications

Added extra editor commands for easier editing on touch devices

Refined the import‑file selector so it only accepts the appropriate file types

Added a title that shows the current state of the global enabler

Fixed a minor UI glitch that appeared in wide browser windows

Added regular expression support to the script search

Reworked global hints to allow live updates without a page reload

Improved keyboard navigation of tabs

Added editor theme 'Claude' | thanks to coffeechococake7

Locales

Added Hebrew translation | thanks to EliShteinman

Updated Chinese (traditional) translation | thanks to MaxHasBeenUsed

Updated Italian translation | thanks to bovirus

Updated Portuguese translation | thanks to Blackspirits

Updated Vietnamese translation | thanks to IoeCmcomc

Updated Japanese translation | thanks to shirayuki

Updated Belarusian translation | thanks to Pavel Miniutka

General

Fixed setting relative paths via window.location

Fixed GM_xmlhttpRequest to allow sending FormData objects with duplicate keys

Improved script installation and import

Allow script storage editor to be saved using ctrl+s

Fixed some issue with the script update column

Locales

Greek translation updated | thanks panos78

General

Added Blob and File download capabilities to GM_download

Added support for sending ArrayBuffer and UInt8Array objects via GM_xmlhttpRequest

Added the $DATETIME$ variable for use in script templates

Fixed intermittent missing progress events for GM_download and GM_xmlhttpRequest

Fixed response text encoding of fetch-based, non-utf8 GM_xmlhttpRequest

Reworked the storage implementation

Reworked the sandbox console to make its properties configurable

Fixed onurlchange so it fires on hash changes triggered by pushState

Microsoft Edge

Fixed downloading large files in 'native' mode

Fixed importing large scripts

Fixed a GM_xmlhttpRequest issue with large responses when using 'fetch' mode

Fixed the "Message length exceeded" error during script updates

Fixed an issue with downloading large data: URIs

Added commands to jump to the next/previous linter problem

Added an option to show no text, but only the badge on script execution

Improved tag editing for selected scripts

Corrected rendering of SVG script icons

Fixed site favicon issues

Made some more strings translatable (unit, editor commands)

Fixed forced action menu updates

Reworked the UI to better distinguish between scripts that are disabled and those that are enabled but not executed

Sync

Added the user-modified flag to the synced properties to prevent overwriting local changes after a sync

Enhanced OneDrive sync by adopting a standardized URL for file listings

Experimental

Added experimental support for GM_audio

Locales

Updated Greek translation | thanks panos78

Updated Spanish translation | thanks pepe1987 and Texaliuz

Updated Russian translation | thanks Blueberryy

Updated Italian translation | thanks to bovirus

Updated Portuguese-Brazil translation | thanks to igorruckert

Updated Japanese translation | thanks to shirayuki

Updated Vietnamese translation | thanks to IoeCmcomc

Microsoft Edge

Reintroduce support for GreasyFork to detect Tampermonkey even when developer mode is disabled

General

Fixed the configuration of script positions via drop down menu

Fixed GM.cookie.list() to resolve also if called without an argument

Allow GreasyFork's install button to update correctly after moving a script to the trash

It is necessary to enable developer mode to run userscripts via Tampermonkey now.
Instructions on how to enable it can be found here.

Microsoft Edge

Switched to Manifest V3

General

Tag support

Added @run-in support

Added a setting to control whether GM_cookie should be able to access HttpOnly cookies

Added button to force update externals

Added multi-value support for storage methods

Fixed header-derived filenames in GM_download

Reworked counting of executed script instances

Enhanced back/forward cache navigation handling

Fixed an GM_registerMenuCommand issue with non-letter accessKeys

Added partitionKey support to GM_cookie

Added cookiePartition support to GM_xmlhttpRequest

Added a warning message when a script without @include and @match entry is saved the first time

Fixed storage change listeners after clicking a download link

Fixed issues with GM_registerMenuCommand if the command was registered multiple times (e.g. from different frames)

Added a button to disable script updates at the update dialog

Improved editor search functionality

Fixed code selection near the top and bottom of the editor

Fixed editor height issue in mobile views

Show an error icon at scripts without any @include and @match entry

Sync

Fixed synchronization issues with WebDAV

MV3

Manifest v3 requires a different workflow when installing a userscript
Note: you can restore the old behavior, by changing Userscript URL detection to Legacy

Locales

Updated Ukrainian translation | thanks to Postrediori and click0

Updated Portuguese-Brazil translation | thanks to igorruckert

Updated Italian translation | thanks to bovirus

Updated Japanese translation | thanks to shirayuki

Known Issues

GM_webRequest is not (yet) supported in Manifest V3

GM_xmlhttpRequest fires only one progress event (you can use responseType stream for now)

In UserScript API Dynamic mode scripts that are using a RegExp @require cause overhead by being injected into every frame

GM_xmlhttpRequests are running serialized ^{workaround available}