Snowmonkey is based on 52esr and is limited to the thunderbird add-ons site. SpiderWeb also based on 52esr/old uxp, is more locked down, but has less extension support. Interweb based on 52esr/old uxp, has the next best extension support, but is open to webrtc leaks. However, it's fast and supports a ton of extensions. Arctic fox gets regular updates and bug fixes, but it doesn't have as new of a rendering/java script engine. Just don't add anything which hasn't been updated in years.
NOTE: This is a Wiki post, so feel free to add any others to it. S upports 10.6+ 10.9 to 10.15 (developer amended from 10.6+ to 10.12+, but 10.9, in an all-64-bit environment, might work here) Supports 10.4.3 Intel through 10.14 (i.e., includes all SL-capable Macs) The following is a list of known, up-to-date (or relatively up-to-date) and maintained web browsers, e-mail clients, and FTP clients, for Intel Macs with at least Snow Leopard support, then Lion and up.ĥ.9.2 supports 10.9 through 10.15 5.8.6 supports 10.7 through 10.14
Finding web browsers that are still usable on today’s web can be a chore for older versions of OS X.
