Your Power Mac more reliable, capable and responsive —. We're not only compatible with Mac OS X 10.4 and 10.5, but we also build our browser. Selected older versions prior to 24.1 and after are available, but have known remotely. Mozilla, Firefox's creator, cautions computer users that reverting to old versions of the browser exposes them to security risks. However, some people may still prefer to use older Firefox versions.

[] Downgrade instructions To downgrade to an old version of Firefox, first, as a precaution, and then follow these steps: • Download the version you want from or Note: If you are looking for an older version of a Firefox 'final' release, look for a download with no letter suffix (e.g., 18.0.2 is the last final release version previous to 19.0). Release versions that end in esr (e.g., Firefox 17. 0.3esr) are versions intended for organizations. Versions that end in b (e.g., 19.0b6) are releases, intended for users who are. Make sure to remove the Firefox.

You can install Firefox in the same location to minimize any side effects. For example, the Windows registry or other installed programs may expect Firefox to be in the default location (e.g., C: Program Files Mozilla Firefox or C: Program Files (x86) Mozilla Firefox on 64-bit Windows). • After installing the older version, turn off the automatic Firefox feature (if enabled). • Reconfigure your if you have one.

• If Firefox disables any of your add-ons you probably need to replace it with a version that supports a older version of Firefox. • If you experience other problems,. [] Security issues Previous released versions of Firefox are no longer maintained and become obsolete. Although you can still download these old, obsolete Firefox versions, they contain and are unsafe browsers. There are real security problems (actual exploits in the real world) with old versions of Firefox. See the page for more information about vulnerabilities in old versions of Firefox. Rather than downgrading to an older, unmaintained version, you should consider switching to the latest version of,.

You should also consider installing the latest version. If you must install an old version of Firefox: • Make certain you keep the plugins up to date by periodically visiting the page. • There are increasing numbers of and exploits.

If you can't keep your plugins updated,. • Install either the (recommended) or the.

Mozilla Corp. Is thinking about dropping Firefox support for Apple Inc.' S Mac OS 10.3, the three-and-a-half-year-old operating system also known as Panther. In a thread on the forum and a to Google Docs, Mozilla developers argued whether Firefox 3.0 should run under Panther. 'I'd like to propose that we drop support for Mac OS X 10.3 (Panther) on the Mozilla trunk,' said Josh Aas, Mozilla's resident Mac OS X developer. 'I believe doing so will result in a significantly higher quality release of Gecko 1.9 [Firefox 3.0] for the vast majority of users on Mac OS X.'

[ Related: ] Aas cited finite development and testing resources, as well as the upcoming release of Mac OS 10.5, a.k.a. Mozilla firefox for mac os x. 'Leopard,' this October as reasons for backing away from Panther. 'Dropping support for Panther would also free up engineering resources,' he said. 'We are already running short on time to deliver a product that works well on Tiger and Leopard. 'There is already a backlog of tricky Panther-only regressions, bugs and performance issues in areas ranging from widgets to fonts and gfx/Cairo that I suspect will consume at least a few weeks of development time,' said Aas. Others on the thread, however, urged caution. 'I'm sympathetic to the economic argument, especially given our scarce Mac hacking resources, but I think we need to be more deliberate about it,' said Mike Shaver, Mozilla's technology strategist.

Still others took issue with the whole idea of abandoning the older operating system. 'I want to have a kick-ass Firefox 3 that makes Safari quake in its boots, but I also don't want to dismiss the loyal Firefox users that still may be using 10.3,' said Marcia Knous, another Mozilla developer. [ ] Mozilla isn't afraid of dropping support for older operating systems. On the Windows side, the company has already announced that Firefox 3.0 will not support Windows 98 and Windows Millennium, both of which were dropped from Microsoft Corp.' S own support list last summer. And last week, a Mozilla executive said the new browser, expected to ship before the end of the year, probably won't support. Apple typically offers security updates to just two editions of Mac OS X simultaneously; after it launched Mac OS X 10.4 in April 2005, it stopped posting updates for Mac OS X 10.2, alias Jaguar.