From MozillaZine Knowledge Base
- This article was written for Thunderbird but also applies to Mozilla Suite / SeaMonkey (though some menu sequences may differ).
Thunderbird doesn't support any preferences to automatically resize a image when displaying or sending a message.
Firefox supports a browser.enable_automatic_image_resizing preference to automatically resize images. The same setting exists in Thunderbird, but it doesn't have any effect when displaying images in a HTML message. However, there are some workarounds.
- You could use the Image Zoom extension to zoom in or out when viewing images.
- You can select the image in a HTML message and drag the corner of the picture inward, shrinking the image before sending the message. This changes how the image is displayed, not how its stored. If the recipient is configured to display an image inline it will display it as a shrunken image. However, if they're configured to display it as an attachment it will display full size (when they open it).
- View the images using Windows Image and Fax Viewer rather than Thunderbird.
- Resize the image before sending it.
- IrfanView is a popular image viewer that can also resize an image. Both Fookes Easy Thumbnails and High Quality Photo Resizer can resize multiple images with one command.
- Microsoft's Power Toys includes a image resizer. You can right click on the image file and select small, medium, or large.
- If you're using Windows XP or Vista you could right click on the image file in Windows Explorer, select "Send To -> Mail Recipient" and Windows Explorer will offer to resize the images for you before passing them to the default e-mail client .
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