1. Video Downloader Professional

Video Downloader Professional is a powerful video grabbing extension that supports multiple video formats, including MP4, FLV, etc.

feature:

Handle pagination

Data analysis

Visual element selector

Extract multiple records from a single page

On Mozilla's addons.mozilla.org website, Video Downloader Professional received a rating of 4.2/5 stars, which shows that most users recognize its functionality.

2. SEOquake

SEOquake is a comprehensive SEO toolkit developed by the Semrush team. It integrates various SEO indicators such as external link data, index status, and traffic estimation, and provides functions such as website audit and keyword difficulty analysis. Users can quickly obtain SEO-related data of the website through SEOquake, providing strong support for data analysis and optimization.

3. Link Miner

Link Miner is a Chrome extension designed specifically for link builders. It can quickly mine link opportunities in web pages, identify broken links, irrelevant links, friendly links, etc., and generate a list of potential link targets. With the Hunter tool, users can easily find the website owner’s contact information, greatly simplifying link outreach.

4. MozBar

MozBar is a classic SEO tool produced by Moz. Its free version includes practical functions such as checking page loading speed, standardizing links, and HTTP status codes. In SERP, MozBar will display Moz's authority indicators, such as domain authority (DA) and page authority (PA), to help users quickly evaluate the authority and credibility of web pages.

5. Keywords Everywhere

Although Keywords Everywhere now requires a paid subscription, the data accuracy and rich features it provides make it a great assistant for keyword research. It can display the estimated traffic, word count, keyword density and other information of each result in Google search results, and provide related keyword ideas and their search volume. For SEO practitioners, this is an indispensable tool.

6. SEO minion

SEO Minion is a multi-functional SEO extension, and its SERP preview function is particularly useful. Users can use this extension to preview the effect of modifying the title and description to avoid content being truncated. In addition, SEO Minion can also detect various page elements such as dead links, HTTP status codes, internal links, etc., providing comprehensive support for website optimization.