Mozilla plugs 13 holes in Firefox, retires older 2.0 browser
Urges Firefox 2.0 users to upgrade to the newer version as it drops support and ditches antiphishing protection
Computerworld - Mozilla Corp. late yesterday patched 13 bugs in Firefox, nearly half of them labeled "critical," as it closed support for the two-year-old Firefox 2.0 by releasing that version's final security update.
The update patched slightly more vulnerabilities in Firefox than the last two security updates in November and late September.
Firefox 3.0.5 fixes a total of 11 flaws, six rated "critical," one "high," one "moderate" and three "low" in Mozilla's four-step scoring system. Most of the critical bugs could be used by hackers to crash the browser, introduce their own malicious code into a vulnerable system or both.
Mozilla also updated the older Firefox 2.0 line to Version 188.8.131.52, patching 10 vulnerabilities in all, eight of them shared with 3.0.5. Of the total, only three were rated critical.
As per Mozilla's support policy, yesterday's Firefox Version 184.108.40.206 was the final security update for the browser that debuted in October 2006. "Mozilla is not planning any further security and stability updates for Firefox 2, and recommends that you upgrade to Firefox 3 as soon as possible," said Samuel Sidler, a Mozilla engineer, in a post to the "mozilla.dev.planning" message group yesterday. "It's free, and your settings and bookmarks will be preserved."
Although the older browser is now officially retired, users can, of course, continue to use it. However, as Sidler mentioned, Mozilla has urged users to upgrade to Firefox 3.0, which launched last June. Since then, it has twice offered what it dubs a "major update" to users of the older browser, hoping to get them to move up. The most recent upgrade offer went out two weeks ago. Mozilla plans to make one final offer sometime early next month.
Compounding the retirement of Firefox 2.0 is Mozilla's decision to drop antiphishing protection from yesterday's Firefox 220.127.116.11. Done at Google Inc.'s request -- the search company produces the blacklist of risky sites -- the withdrawal means that users won't be warned of potentially dangerous URLs before they reach them.
Google asked Mozilla to disable the feature in Firefox 18.104.22.168 because the older browser line uses an obsolete protocol.
While there are no Mozilla-provided work-arounds, users who want to stick with the older browser can turn to alternative tools, including the Netcraft Toolbar, WOT (Web of Trust) and FirePhish extensions. All three can be downloaded from Mozilla's add-on site.
The new versions of Firefox can be downloaded for Windows, Mac OS X and Linux from the Mozilla site, or users can call up their browser's built-in updater or wait for the automatic update notification, which should pop up in the next 48 hours.
Read more about Security in Computerworld's Security Topic Center.
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