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My computer won't support latest version of Firefox - how can I identify and upload latest version that will work?

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Hardware Overview of my iMac follows

 Model Name:	iMac G5
 Model Identifier:	PowerMac8,2
 Processor Name:	PowerPC G5  (3.0)
 Processor Speed:	1.8 GHz
 Number Of CPUs:	1
 L2 Cache (per CPU):	512 KB
 Memory:	1 GB
 Bus Speed:	600 MHz
 Boot ROM Version:	5.2.5f1
 Serial Number (system):	QP52107FSDX
 Hardware UUID:	00000000-0000-1000-8000-0011243B1A5A
Hardware Overview of my iMac follows Model Name: iMac G5 Model Identifier: PowerMac8,2 Processor Name: PowerPC G5 (3.0) Processor Speed: 1.8 GHz Number Of CPUs: 1 L2 Cache (per CPU): 512 KB Memory: 1 GB Bus Speed: 600 MHz Boot ROM Version: 5.2.5f1 Serial Number (system): QP52107FSDX Hardware UUID: 00000000-0000-1000-8000-0011243B1A5A

Chosen solution

Firefox 3.6.x is the last available from Mozilla for PPC Macs.
http://www.mozilla.com/en-US/firefox/all-older.html


For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/
http://tenfourfox.blogspot.com/
https://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported

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Chosen Solution

Firefox 3.6.x is the last available from Mozilla for PPC Macs.
http://www.mozilla.com/en-US/firefox/all-older.html


For older Macs that aren't supported in Firefox 4+ versions, try TenFourFox for PowerPC's running Mac 10.4.11 & 10.5.8 .
http://www.floodgap.com/software/tenfourfox/
http://tenfourfox.blogspot.com/
https://code.google.com/p/tenfourfox/wiki/PluginsNoLongerSupported

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Thanks for the help. Will check out the other options.