What's the BEST internet browser for digital marketing, social media marketing, web development, web design and/or SEO? Why?

I recommend you the Mozilla Firefox and UC Browser, but for the first prefference Mozilla firefox is suitable for your requirments..

Because Firefox supporting lot of plugins and widgets and its a single processing browser.

Single Processing means if you look in Chrome your each tab has its own window in task manager and ofcorse it covers alot of processing speed of your system . however firefox is a single processing browser that will cover a specifc processing of your RAM and that' why you can use the others apps while the firefox is running... :)

Thank you ,, !! 

For Designing and Development Google Chrome ,

- Reason is obvious Like Firefox Chrome Don't have memory leakage issue thats why work faster

-, Also as per my experience WebKit (Rendering Engine Behind Chrome and Safari)  is rolling out new features earlier as compare to Gecko 

- As per Market Share Chrome is now leading clearly , In Desktop and Smart Phones so means if your design work well in Chrome thats means most part of your audience is satisfied.

- Chrome is standard compliance browser (same like firefox but i prefer Chrome )

For Digital Marketing , SEO , SMM as per knowledge browser is not making much difference other then if you  are using some particular addon , Like in Chrome i use few plugins which are very effective if you want to debug Google Double Click Campaigns , Or Moz Bar for SEO purpose , but i think similar or same alternate available for other browsers too

For web design I will recommend Firefox or Google chrome because they have options for modifying codes directly

Mozilla firefox is good but need speed internet . if internet is a bit slow Google chrome is the best

As a general rule, you should target all major browsers to reach the biggest amount of users, but if you want to narrow it to one browser then only your target audience will decide that. In the analytics of your website/landing page check the browsers your visitors are using (this can significantly vary from a website to another) and work on the most one used which might be a mobile browser!

I Think Both Google Chrome and Mozialla firefox are more helpfull than other browser..I use both the browser but never faces any problems.And Suggest you guys that dont belive in IE,If use then download its higher version.

There is no real best browser because they all have specific features that trump the other. If you look at Firefox it's got some great extensions for debugging client-side code but so does Chrome. The latter provides some excellent ECMA functionality for creating snippets, running code-blocks and even testing events without firing them.

Internet Explorer is one browser that most people stay away from but the reality is that most corporate clients tend to be stuck with it because it is a corporate guideline. When you reach that kind of an impasse then you can forget about Firefox and Chrome or the other variants with core engines that are the same (WebKit, Gecko, etc) because your target audience is really what the best browser is going to be.

After spending a lot of time jostling with different browsers and trying to get each of them to work (Mobile and Desktop variants) the only advice I can give to anyone that asks the question from a development/design perspective for which one is the best is this. Don't write or design anything for one browser, you may be tempted to jump the gun and think that what's shiny is the best for your client/target audience but the reality is that keeping things simple and sticking to practices that are cross-browser friendly allows you to hit wider audiences across multiple platforms. Going with statistical numbers from a global audience for a target practice design/development job is also a poor practice because your audience may not even be a major part of the global stat practice.

Thanks for asking... Good Question Khatim!

Long story Short: The browser that your target audience is more likely to use.

Browsers are just readers of the Digital Content on the Web (that is why call them browsers). They are by on the "client side" which means website owners/designers/developers have little/limited control over browser behavior. Thus they can't be used directly.

Sometimes you can reach your target audience through toolbars. Toolbars, unlike websites are not viewed or read by browsers and thus you need to code accordingly to the expected user base (eg:target users use Firefox over Chrome)

I fully agree that websites should be developed with all the major browsers in mind. However, all this being said, if you know your target audience and also know which browser they are more likely to use; you should plan your web developement based on testing on that browser more extensively to make sure that your target audience gets the best user experience.

Google Chrome, because it saves history which is a great help for smooth functions from any machine with just a signin.

I'd say Google Crome.. The reason is Mozilla's recent performance is not up to that mark and lots of the plugins are not compatible with it. On the other end, Chrom has improved a lot, you may use multiple plugins simultaneously.

Google Chrome because of the amazing integration with google plugins/analytics, etc...