Well, I have taking about too many ways to run multiple Gmail account simultaneously (method 1, method 2 and method 3) and still if you aren’t able to find the one for you then here is another try from my side.

Gmail Manager is that FireFox extension which will allow you to manage multiple Gmail accounts simultaneously. It displays your account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.

All in all exactly what you were looking for.

Download and Install Gmail Manager

Although you can always use Google Chrome to open multiple instances of gmail at a time and you can always use my tiny trick to log into multiple instances of gtalk but if you are firefox crazy then you will surely want to open multiple instances of gmail from your firefox browser itself.

All you need to do after installing this freeware extension is to toggle CookiePie for a tab on which you want to open new instance of Gmail or any other mail. A small cookie sign will show up on that tab and then you are all set to open another instance of your gmail account or any other account in firefox without any problems.

I guess, this is by the easiest way to open multiple instances of any account like facebook etc. at a time as per our comfort without troubling firefox.

Download CookiePie

This firefox addon will be very helpful for those webmasters who constantly want their website to open in IE so as to check by default if it is working fine in IE. After all its IE that creates problems with websites not firefox. Similarly this extension will help those Internet sufers who love firefox but constantly stumble on sites which they have to visit regularly but the problem is that those websites aren’t compatible with firefox. Like the website which I use to check my monthy broadband download limits works only with IE. This plugin works best for me.

Once installed then users can open some pages in IE with the help of a single right click or they can set some pages to directly open up in IE by default.

Download IE View

This firefox extension is a must download for you if you don’t have the habit of watching the URL before clicking any link on the webpage. There are chances when you will be redirected to the yahoo mail login page which will look exactly like yahoo mail login page but originally it would be hosted on some other domain. This is done to gain access to your id and password. The best way to avoid this is to watch the domain carefully everytime before you click any link on that page.

To make things simpler you can use Location Bar which changes the color of the domain (especially the homepage link) thus making it easy for you to recognize the domain.

Download Locationbar²

Remember the up button of Windows Explorer or the up button of the Open / Save dialog box? It helps you navigate one directory above what you are currently viewing.

Uppity is a cool firefox extension which will help you incorporate the same feature to your firefox. Like, in the image above, if I use the Upptiy button then I can navigate from the gmail tricks category of my blog to its parent category google tricks or the one level up, the tips tricks and hacks category else you can also navigate to the home page too! All this at the ease of just one mouse click.

Download Uppity