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A newer Core 2 Duo can even be upgraded to 10.11.3, depending on what you have - although you may not want, or need to do that - it is still an option for youīut, I need to know which iMac you have, and the System Profiler will tell me everything relevant about possible upgrades for your iMac. What is listed next to Model Identifier? (should be something like iMac9,1 - but I need to know what your iMac shows)Ī Core 2 Duo iMac can be upgraded to Lion (OS X 10.7.5) as a minimum. That will bring up the System Profiler, where you can look at the hardware configuration (Hardware Overview) That window will show processor speed and memory installed (plus a couple of other items), What Mac do you have, and how much RAM memory is installed? You can make sure about that by going to the Apple menu, then About This Mac. FIREFOX FOR MAC OS X 10.5 UPGRADEIs there a particular reason that you have chosen not to upgrade your operating system? You would be better served if you upgrade your OS X, as you will have a lot of other options. That solution that I posted, with the PPC version of a nice web browser, is designed for those that want, or need to stay with PPC versions. Those cannot be upgraded to any newer OS X version The usual reason is when using a PowerPC Mac, such as a G4 or G5 Mac. You can use Apple’s Migration Assistant to transfer everything from your old Mac or OS X, including Firefox.Sorry - I assumed that you had to stay with 10.5.8. If you do decide to upgrade your OS X or Mac, you don’t have to lose all of your Firefox settings and bookmarks. FIREFOX FOR MAC OS X 10.5 INSTALLOfficially, you’re also supposed to be running at least OS X 10.6.6 in order to upgrade via the Mac App Store (which OS X 10.5 can’t access) but there is a way to install Lion from a bootable DVD or USB drive. If you’re unsure about your Mac’s specification, go to the Apple icon in the top left corner of our screen and select “About This Mac”. ![]() To do this though, your Mac will need to be an Intel Mac with a minimum of Core 2 Duo, i3, i5, i7 or Xeon processor and at least 2 GB of RAM. It’s also highly likely that Apple will also stop supporting OS X 10.6 Snow Leopard soon too, so our advice is try to upgrade to at least OS X 10.7 Lion. Why You Should Upgrade Your MacĪn even more compelling reason to upgrade from OS X 10.5 is that since 2009, Apple has stopped supporting Leopard anymore meaning the entire OS is vulnerable to attack and serious stability issues. Mozilla take security very seriously and it’s also worth checking out the Mozilla Security Blog to see some of the work that goes into keeping Firefox safe. If you want to see just how many security threats have to be fixed on a regular basis by Mozilla, check out the latest Security Advisories for Firefox. Not only this, but you’ll also find that many add-ons or plugins simply won’t work with it anymore. We emphasize that using Firefox 16 is not a good idea because it is no longer updated or supported by Mozilla leaving it vulnerable to attack, malware, spyware and other online threats. Since Firefox 17 until the latest version of Firefox, you need at least OS X 10.6 Snow Leopard or higher to run the browser safely and efficiently on your Mac. In this article, we look at the risks and problems of using Firefox 16 and highlight what your options are. In this case you’ll need Firefox 3.6 for Mac which was the last one to support PPC Macs but is even older and more vulnerable than Firefox 16. FIREFOX FOR MAC OS X 10.5 HOW TONote that this only works if you’re using an Intel Mac – if you’re still using OS X 10.5 or 10.4 on a PowerPC Mac, then we recommend this article about how to install Firefox on PPC Macs and OS X 10.4.11. However, we strongly recommend you upgrade to at least OS X 10.6 Snow Leopard or higher as Firefox 16 is no longer updated by Mozilla and therefore not secure anymore. FIREFOX FOR MAC OS X 10.5 DOWNLOADIf you’re using OS X 10.5.8 Leopard then you can still download Firefox 16 for Macs which works on 10.5.8. ![]()
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