Thunderbird 17.0.3 released

Thunderbird 17.0.3 is now available for download. Thunderbird is a free, open source, cross-platform e-mail and developed by the Mozilla Foundation.

What’s new in this version of thunderbird?

Attachments sometimes could not be removed from the composition window using the keyboard.

Security fixes:

Use-after-free, out of bounds read, and buffer overflow issues found using Address Sanitizer
Phishing on HTTPS connection through malicious proxy
Use-after-free in nsImageLoadingContent
Privacy leak in JavaScript Workers
Web content bypass of COW and SOW security wrappers
Wrapped WebIDL objects can be wrapped again
Out-of-bounds read in image rendering
Miscellaneous memory safety hazards

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