Mozilla Updates Firefox for Garbage Collection

Barely three  weeks after its last update, the Mozilla Firefox
2.x browser is again being patched for a security issue. Firefox fixes
a single issue that is a result of a fix that Mozilla made in the Firefox release

The fix for ‘Crash in JavaScript garbage collector’ MFSA
that Mozilla fixed with Firefox is the culprit.

Mozilla explains in its advisory that the fix, introduced a stability problem:

This is being fixed primarily to address stability
concerns. We have no demonstration that this particular crash is exploitable
but are issuing this advisory because some crashes of this type have been shown
to be exploitable in the past.

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