Requires Mac OS X 10.5 or 10.6, a WebKit browser (e.g. Safari).

  1. Download and open the disk image. Quit Safari.
  2. Copy the Plug-in to “/Library/Internet Plug-Ins” (for all users) or to “~/Library/Internet Plug-Ins” (for you only).
  3. Restart Safari. Enjoy.

To uninstall Flashless just quit Safari, move “Flashless.webplugin” from “/Library/Internet Plug-Ins” to the trash and restart Safari.

OS X Lion

Flashless will neither work with OS X Lion nor Safari 5.1 on Snow Leopard.

Starting with OS X Lion or Safari 5.1 running on Snow Leopard all plug-ins run in a separate process to increase stability and security. Unfortunately, this is not possible with the type of plug-in that is Flashless. These so called Cocoa WebKit plug-ins are now considered obsolete and will not run any more.

A complete rewrite as either a Safari extension or a Netscape-style plug-in would be required. Due to time constraints this won’t happen in the near future.

Supported Services

Basic usage (blocking, playing, removing) is available for all Flash content from every source.

However, preview, download and jumping to the original are only usable with some sites. The following video services are currently supported:

ServiceWatchPreviewDownloadJump to Original
Google Video11
Other Sites

1) Only available on original site. Use “Show At ‘…’” from the menu.

2) Not available for all videos.

3) With Flashless 2.0.7 YouTube downloads are working again.

All services that support download also support direct play.

Can I play videos in fullscreen mode?

Fullscreen Yes. Using Flashless in Safari 5 on Mac OS X Snow Leopard, you can play videos from all supported services in fullscreen mode.

Just click the double arrows on the lower right side of the video.

Why can’t I download videos from YouTube?

Sometimes videos from YouTube open in the browser window instead of downloading. If that happens, click the address bar, hold the option key and press the return key to start the download.

Option key Return key

Ensure you are using Flashless 2.0.7 or higher.

Known Issues

Although most sites work flawlessly with Flashless, some may have issues.

Facebook: Farmville, …

You may experience problems when trying to use some Facebook apps (e.g. Farmville).

To fix them follow these steps:

  1. In the Finder choose Go › Utilities.
  2. Start Terminal by double clicking its icon.
  3. Enter the following text or paste it.
    defaults write de.uselessness.Flashless UCWhitelist -array-add ""
  4. Press Enter.
  5. Quit Terminal and restart Safari.

Facebook apps should work now.

Sources and older Versions

Flashless is an open source project hosted on GitHub. Feel free to contribute.

Older versions can by found there too.

Bird: @nosuch — Useless Coding.

Last edited on July 28, 2011.