From n.p.m.wishlist: "It would be nice to support multiple proxies within the same profile depending on the current ISP like IE5 does it." It would be indeed a nice feature, however I don't know how feasible this is for two reasons: a) it would have to be handled totally different for different platforms and b) is mozilla aware of the type of network connection (ISP) it uses to connect? IE5 has in this case the advantage of being part of the OS.

adding my proposals for an "advanced proxy support" from bug 59969: - make mozilla auto detect, if the proxy uses http 1.0 or 1.1 (see bug 38488), (no more debug prefs needed, which aren't available through "preferences" in ns6) - support multiple proxy configurations, e.g. one config without proxys (direct connection at home), one with a proxy (at work), another with a different proxy (say, second ISP at home or a temporary configuration if you are on holidays etc.). this would be really cool for laptop users! you should be able to apply to the configurations through the preferences. i imagine a drop-down menu. - do proxy configuration during profile creation

*** Bug 59969 has been marked as a duplicate of this bug. ***

Taking bug. > a) it would have to be handled totally different for different platforms The user would have to manually select the ISP, until we have code that intergrates with the OS. Still better than 2 profiles or manually changing prefs. I suggest to use the offline function, i.e. turning the 2 states "online" and "offline" into "offline", "custom" (uses proxies from user prefs) and once for each provider. The data (the proxies for each ISP and the ISP name) could (and should, at least at some level) come from the ISP files, which we have in Mailnews anyway.

*** Bug 59969 has been marked as a duplicate of this bug. ***

If anybody wants to fix this, take the bug.

mass move, v2. qa to me.

can this bug can be fixed using PAC? or maybe we need a way to tell which connection is being used? (that would be platform specific I guess)

PAC solves it, but you have to keep changing the PAC URL in the Prefs UI. This is another piece of functionality that fits under what I am proposing for bug 89928.

*** Bug 88218 has been marked as a duplicate of this bug. ***

this bug is improtant for users who uses ad filter proxys. mozilla should have more a status switch than a offline/online button to choose which proxy or setting should be used. if you see that a wrong content is filtered it is so complicated to turn of the proxy or select another.

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(Dataloss during Back...) ->nobody

*** Bug 148977 has been marked as a duplicate of this bug. ***

I think this bug is several in one: there should be support for multiple preconfigered proxies. Proxy configs would have names and should be selectable easily and quickly. The reason for this is that multiple ISPs is not the only reason for having several proxies - here are a few others: using a local ad/popup filter proxy like privoxy or webwasher, using an anonymizer proxy like jap, accessing a remote intranet server via a ssh tunnel which requires setting the proxy to 127.0.0.1, using different proxies to speed up different groups of web pages etc. So having a means to easily and comfortably switch between preconfigured proxies would be useful for all these situations *and* a first step to make it easier to deal with different ISPs. Then, in a second step (and second bug?) we could add a feature to automatically select one of these proxies depending on the ISP. One note about a portable way to implement that aut-selction: wouldn't it be possible to do this based on a pattern of the own hostname and/or IP?

Taken to the most robust implementation, you are talking about bug 88218.

*** Bug 189746 has been marked as a duplicate of this bug. ***

*** Bug 199766 has been marked as a duplicate of this bug. ***

I've made some comments about how to store proxy config data (and implement prefs UI) in bug 88218.

*** Bug 100523 has been marked as a duplicate of this bug. ***

I agree with the need for multiple proxy servers/configurations (ala DNS?). We have three choices at the moment, automatic, manual, and direct connection. When traipsing about the globe or just moving from office to home, it is frustrating to have to keep looking up and manually changing the proxy server. I now have four proxies that I must use regularly. Automatic proxy selection would be nice, but even a drop-down list would be helpful.

Although I've yet to actually use it (installed, but not utilised), the Switch Proxy extension looks to be quite useful in this sense. http://jgillick.nettripper.com/switchproxy/

*** Bug 274693 has been marked as a duplicate of this bug. ***

*** Bug 334810 has been marked as a duplicate of this bug. ***

NOTE: many users simply need a SECOND proxy "profile", because they use different proxies at home vs. work. Using a simple PAC file can get you around that.

This isn't on anyone's work list and realistically is an abandoned idea. I will close as wontfix - if someone has a patch or is actively going to work on it please reopen. (but please, only then.)