SillyDog701

[Fulvio]

I, always, thought that it was no big deal to have three versions of the same program, as long as they installed in different folders, and use different profiles.
But Mozilla Firefox outsmarted me, creating a minor mess. It started when Secunia PSI told me that Firefox4.x was end-of-life. I, hardly ever, used FF4.x, so I decided to uninstall it. I knew it was located in Program Files|Mozilla Firefox 4.0, so I had no problem taking it out. But, while in the Add/Remove, I noticed Mozilla Firefox5-x86-en-GB. I was not aware that I had a British Firefox, so I decided to remove it. But, the location looked suspicious. It was in Program Files|Mozilla Firefox, where, I was sure my FF3.6.17 had been located. I had, since updated it to 3.6.18. Anyway, I removed this en-GB, and all went well till Secunia PSI announced that I had removed FF3.6.18 and 4.01.
I redownloaded 3.6.18 from File Hippo, and it was installed a 3.6.18, confirmed by Secunia PSI.
So, watch out for stray Firefoxes!

UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18

[Antony]

Fulvio,

I think the better way to have multiple versions of Firefox is to have them installed on different environments, e.g. under different virtual machines to avoid the headaches or confusions.

However, that could be quite a fair bit of maintenance and possibly additional costs.

UserAgent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.18) Gecko/20110614 AlexaToolbar/alxf-2.13 Firefox/3.6.18

[richard mitnick]

Fulvio, you are a glutton for punishment. More power to you.

UserAgent: Mozilla/5.0 (Windows NT 6.0; rv:5.0) Gecko/20100101 Firefox/5.0

[James]

Unless a person is testing web sites with a variety of browsers, I'm having a hard time understanding the advantages of carrying several versions of the same browser. It seems to me to be an accident waiting to happen but I could be wrong.

UserAgent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/534.30 (KHTML, like Gecko) Chrome/12.0.742.100 Safari/534.30

[Fulvio]

I had been carrying as many as three different versions from way back, during the Netscape/Mozilla days, without any problem. I know that some people feel that it is dangerous carry even one browser more than IE, but there is no danger, provided the developers do things right. And, the are not. In a separate thread, I deal with the fact the this Rapid Release craze is getting out of hand.
When I installed FF6.0 b1, which is far from final, it came up with installation in the default location for Firefox, and checked to be default. I think that it is possible to test multiple browsers, in spite of the developers' recklessness, but one had to keep his/her eyes wide open. Even custom installations may not be enough!

UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.18) Gecko/20110614 Firefox/3.6.18