This update for seamonkey fixes the following issues:
Update to SeaMonkey 2.53.19:
Cancel button in SeaMonkey bookmarking star ui not working bug
1872623.
Remove OfflineAppCacheHelper.jsm copy from SeaMonkey and use the
one in toolkit bug 1896292.
Remove obsolete registerFactoryLocation calls from cZ bug 1870930.
Remove needless implements='nsIDOMEventListener' and QI bug
1611010.
Replace use of nsIStandardURL::Init bug 1864355.
Switch SeaMonkey website from hg.mozilla.org to heptapod. bug
1870934.
Allow view-image to open a data: URI by setting a flag on the
loadinfo bug 1877001.
Save-link-as feature should use the loading principal and context
menu using nsIContentPolicy.TYPESAVEAS_DOWNLOAD bug 1879726.
Use punycode in SeaMonkey JS bug 1864287.
Font lists in preferences are no longer grouped by font type, port
asynchronous handling like Bug 1399206 bug 1437393.
SeaMonkey broken tab after undo closed tab with invalid protocol
bug 1885748.
SeaMonkey session restore is missing the checkboxes in the Classic
theme bug 1896174.
Implement about:credits on seamonkey-project.org website bug
1898467.
Fix for the 0.0.0.0 day vulnerability oligo summary.
Link in update notification does not open Browser bug 1888364.
Update ReadExtensionPrefs in Preferences.cpp bug 1890196.
Add about:seamonkey page to SeaMonkey bug 1897801.
SeaMonkey 2.53.19 uses the same backend as Firefox and contains
the relevant Firefox 60.8 security fixes.
SeaMonkey 2.53.19 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 115.14
and Thunderbird 115.14 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.