Top 7 SEO Add-ons for Mozilla Firefox every Webmaster Should Use

Firefox has been around for more than twelve years and it has been beloved by millions ever since. It is fast, user friendly and offers an overall stable browsing experience. It is also a prime choice for developers who are looking for a lot more functionality when it comes to handling online tasks.

Thankfully, Firefox has millions of add-ons available at a click of a button. The only thing you have to work out is figuring out which specific task you would like to do more efficiently. No matter what your everyday tasks are or what you are setting out to accomplish, you’re bound to find some kind of add on that will make the process more efficient and less time consuming.

Most web developers, designers and webmasters love Firefox and its huge selection of add-ons for this very reason.

If you’re looking to gather some additional information about a topic or a specific website, you have hundreds of add-ons at your disposal. Some of the most valuable information on the Internet is knowing how search engines operate and how you can optimize your website for them. It’s also good to know what kind of competition you have to face when you’re building a webpage, so having software to help with your SEO efforts is always great.

When it comes to monitoring and building a website’s SEO, you’ll need to get your hands on as much information as you possibly can to make search engines work for you. Mozilla’s add-ons center has many extensions that have proven to be great research tools that many SEO experts have grown fond of using.

In this article, we are going to share some of the top SEO add-ons that will help you in building backlinks and an overall good SEO for your website. We’ll provide the download links to each of them and make sure that you get up-to-date software.

There is only one problem with these add-ons though. While you might be used to having most of your add-ons for free, most SEO extensions have to be paid for if you want their full line of features. This is understandable, because they offer a ton of valuable information, which could bring you a lot of money as well, if you take advantage of it.

Without further ado, let’s see how Firefox can help us in building or website’s SEO!

Mozbar is one of the first of its kind and has been around for many years. It will help you do better keyword research and view webpage’s overall stats when you click on the Mozbar icon.

Once you have it installed, you can view the statistic of each of your search results. You can easily look at a website’s page authority and domain authority to assess your competition. The „Get Keyword Difficulty” button beside the search bar will give you a keyword difficulty score.

Getting the overall status of a landing page has been made easy with this add-on. Just click on the Mozbar icon and you’ll see a bar that shows the webpage’s stats. It will give you the DA and PA scores along with social sharing stats.

You can look deeper into these stats by clicking on the magnifying glass button in the left corner. It will open up a new page where you can look at the page’s headings, alt text, media text, markup, page speed load, headings and a lot more.

The only downside of Mozbar is that it relies only on Open Site Explorer for its data. OSE is a lot smaller than other leading link databases out there, which might turn away a lot of users.

This extension can be used with a free account but you’ll have to buy a PRO account to unlock every feature that Mozbar has to offer.

Ahrefs SEO Toolbar

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Ahrefs offers a lot of insight on the most important SEO metrics for domains, individual web pages and SERPs. You can do much more effective keyword research with this SEO toolbar.

Look through information such as the number of backlinks a webpage has, the number of referring domains and social media metrics for major social media networks. Unfortunately you won’t have all of Ahrefs SEO toolbar’s features unless you subscribe to a monthly plan.

You can use the trial version and enjoy its benefits while it lasts. Overall, it’s a great download if you’re looking to do some throughout keyword research.

SEO Quake

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This add-on was created for webmasters and web designers who are always working on their website’s SEO and SMO (Social Media Optimization). SEO Quake also provides the key SEO metrics of a site such as search engine results, domains and so on.

Many SEO add-ons offer the same features, but SEO Quake kicks things up a notch. It provides SEO parameters that you can sort according to your liking. You can customize it to provide the specific parameters you want to see. For example: the number of indexed pages, page rank, number of links pointing to a page/domain and many similar parameters available for MNS, Yandex, Baidu, Yahoo, Rambler and so on.

Another great thing about SEO Quake is the integration it has with a number of different 3rd party services such as Wordstream, Semrush, Alexa, DomainTools and so on. If you are subscribed to any of these services, using them will be much more convenient and effective.


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MajesticSEO offers a seamless way to look at the link profile of a page and many details. It packs the power of the MajesticSEO database. The information you find in the „summary” tab is free, but you’ll have to have an access token to get the most out of this add-on.

The only problem with this extension is that unlike others, it doesn’t analyze search results, meaning you’ll have to use other tools to do a good keyword competitor analysis.

It is an incredibly convenient and functional add-on for link building, but if you’re looking for a free option, check the Woorank add-on out below.


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This add-on offers a quick and easy way to check if a link is functioning or not. You can scan all the links of a webpage with a single click and also see how many links are broken.

LinkChecker is a really handy tool for link-building because you can quickly notify admins of any broken links you might come across and ask them to replace it.

SEO and Website Analysis by Woorank

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This is an all-in-one SEO tool that stands among the best. This extension focuses more on technical aspects and the on-page SEO. If you click on the Woorank icon while you’re on a webpage, a panel will pop up on the left side. In about 20-30 seconds, it will return a score out of 100 and a lot of information.

The score indicates how many of the basic practices is your page following. You’ll also have six different tabs that give you a variety of information such as: title tags and meta information, page load metrics and how fast can your content be accessed, what plugins and CMS are used, an estimate of traffic level, social sharing statistics and a mobile friendly score and the number of page views on various devices.

The best thing about this add-on, besides the functionality is that all this information is completely free. You can also buy a premium account that will give you a number of advanced options as well.


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If you are interested in how your website is doing, compared to your competitors, SimilarWeb is right add-on for you! You can easily put two websites side by side, compare how they perform and create your marketing strategy accordingly. It will also help you identify its strengths and weaknesses and look through the different aspects performance-wise.

This plug in will let you know:

  • Traffic by countries
  • Referrals
  • Traffic sources
  • Top destination sites
  • Top referring sites
  • Social Traffic
  • Searches
  • Overview traffic
  • Global, category and country rank

A problematic thing about SimilarWeb is that you won’t find information about new websites because it lacks data. It might be a bit out of date, but it can still help you out in your SEO efforts.


This concludes our top list of SEO add-ons for Firefox. Each of them packs a lot of functionality that you can leverage to make your SEO efforts more effective. Most of these operate on a paid subscription basis when it comes to more advanced features and more detailed information, so choose your software wisely.

You can try each of these out through the links we provided and even use some of them completely for free. I hope that you have enjoyed reading through this article and that we’ll see you again soon!

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