This update for seamonkey fixes the following issues:

Update to SeaMonkey 2.53.17.1

  * Upstream libwebp security fix bug 1852749.
  * CVE-2023-4863: Heap buffer overflow in libwebp bug 1852649.
  * Fix bad string encoded in ansi. l10n fr problem only bug 1847887.
  * SeaMonkey 2.53.17 uses the same backend as Firefox and contains
    the relevant Firefox 60.8 security fixes.
  * SeaMonkey 2.53.17 shares most parts of the mail and news code with
    Thunderbird. Please read the Thunderbird 60.8.0 release notes for
    specific security fixes in this release.
  * Additional important security fixes up to Current Firefox 115.3
    and Thunderbird 115.3 ESR plus many enhancements have been
    backported. We will continue to enhance SeaMonkey security in
    subsequent 2.53.x beta and release versions as fast as we are able
    to.

Update to SeaMonkey 2.53.17

* Fix macOS Contacts permission request bug 1826719.
* Remove SeaMonkey 2.57 links from debugQA bug 1829683.
* Treat opening urls from the library as external bug 1619108.
* Disable spam warning for autogenerated links in plaintext messages
  bug 619031.
* Switch SeaMonkey build files to Python 3 bug 1635849.
* Remove empty overlays from Composer bug 1828533.
* Move xpfe autocomplete to comm-central suite bug 1418512.
* Remove nsIPrefBranch2 and nsIPrefBranchInternal bug 1374847.
* SeaMonkey 2.53.17 uses the same backend as Firefox and contains
  the relevant Firefox 60.8 security fixes.
* SeaMonkey 2.53.17 shares most parts of the mail and news code with
  Thunderbird. Please read the Thunderbird 60.8.0 release notes for
  specific security fixes in this release.
* Additional important security fixes up to Current Firefox 102.11
  and Thunderbird 102.11 ESR plus many enhancements have been
  backported. We will continue to enhance SeaMonkey security in
  subsequent 2.53.x beta and release versions as fast as we are able
  to.