Compare Diigo and AdBlocker Ultimate: Which Extension is the Best?

	Diigo	AdBlocker Ultimate
	Diigo is a handy tool for bookmarking, highlighting, and annotating web pages. It has many features, but its old design and limited highlight colors might make it less appealing. Highlighter Bookmark Manager	AdBlocker Ultimate is a powerful tool designed to block ads across various platforms. With millions of users and a high rating, it offers a seamless, ad-free browsing experience. Ad Blocker
Key Features	Highlighting: Works well and highlights are recreated on refresh. Notes: You can add notes to your highlights. Link Creation: Create links to your highlights, although this feature is not very reliable. Sidebar Outliner: Simple design but requires time to understand. Syncing: Highlights are synced across devices.	Comprehensive Ad Blocking: Blocks ads on websites, YouTube, and social media platforms. Additional Blocking: blocking all irritating in-page popups, cookie notices, and third-party widgets Privacy Protection: Prevents tracking and enhances online privacy. Customizable Filters: Allows users to customize their ad-blocking preferences. User-Friendly Interface: Easy to navigate and set up. Regular Updates: Keeps up with new ad technologies to ensure effective blocking.
Our Rating	7.8	8.9
Total users	200,000	3,105,395
Total ratings	2,319	90,243
Average rating	4.6 ⭐	4.8 ⭐
Entry Level Price	Free	Free
Chrome	4.6 2.3K+ ratings 200.0K+Users	4.8 60.3K+ ratings 1.0M+Users
Edge	-	4.7 3.2K+ ratings 719.6K+Users
Firefox	-	4.8 26.7K+ ratings 1.4M+Users
Safari	-	-
Features	8.5 Diigo offers basic features for a highlighter and bookmarking tool. It works well and we were able to highlight most websites and they were recreated when revisiting them. The highlighter popup makes it easy to highlight text offering 4 colors. It looks like this: We would have wished to have more color options. Also, note-taking and the tagging functionality are working, but its design does not look appealing. The dashboard where your highlights are stored works well and gives you an overview of all your highlights.	9.3 AdBlocker Ultimate offers a wide range of features that effectively block ads on websites, YouTube and social media platforms. Ad Blocking: Ads are prevented on various platforms, both on the website and as pop-ups. There are other additional functions here, such as blocking all irritating in-page popups, cookie notices and third-party widgets, which substantially decrease page loading times. The settings can also be used to remove only country-specific advertising and a whitelist can be added. Privacy Filter Blocks an extensive list of various online trackers, counters and web analytics tools. Based on the EasyList Privacy list and upgraded by our team. Additionally you can use the Fanboy's Social Blocking List which Removes social media integration. Security: The Security Filter automatically blocks all malicious domains. The listed filters can all be switched on and off separately and individually.
Performance	8.0 Diigo performs well in terms of highlighting and syncing across devices. The fact that highlights are always synchronized can cause some loading delays. It's not as fast as other highlighters that use an offline-first approach, but it works reasonably well. However, the unreliable link creation feature and the simple sidebar outliner design need improvement.	9.0 During our test, AdBlocker Ultimate did not experience any performance issues. Ad blocking worked flawlessly on all platforms tested, so there were no disruptions to websites caused by advertising.
Design	7.0 The design fulfills its functionality. The design of Diigo is outdated and could use a modern refresh. The lack of a nice overview of all your highlights on the page itself means you have to open the dashboard on diigo.com instead. The dashboard on diigo.com is okay, but other highlighters like Web Highlights have a much nicer user interface.	8.5 The user interface is clearly laid out and should be easy to use for every user. The settings page is also very clearly laid out. Only the constant reference in the extension pop-up to the paid Windows desktop version detracts somewhat from the design.
Value for Money	8.0 The free version of Diigo offers basic features and is fine for most users. The paid plans are reasonably priced and similar to other highlighters. However, we think other highlighters offer more value for the same price.	9.5 The Web Extension is free of charge. Compared to other free providers, it offers a very high number of functions and options for customizable functions. We would therefore rate the price-performance ratio as very good.
Ease of Use	7.8 Diigo is fairly easy to use, but the sidebar outliner takes some time to get used to. You can't see all your highlights on the page itself, so you have to go to the dashboard on diigo.com. We wish there was a sidebar to quickly access all our highlighted pages, like in the Web Highlights extension.	9.0 AdBlocker Ultimate is easy to install and can be used immediately afterwards. Even beginners should find the extra functions easy to use, as they are described in detail. Great importance has been attached to the individual settings for each user.
Security & Privacy	7.5 Diigo takes reasonable steps to protect user data. However, since you need an account and your data is stored in their database, absolute protection can't be guaranteed. We think a highlighter should work without needing to sign up, but this feature is missing in Diigo.	8.2 The tool offers the function of extra privacy protection by preventing tracking and thus increasing online security. However, it is not entirely transparent in the policies whether the data collected by the extension is passed on to third parties.
Conclusion	Diigo is a handy tool for collecting stuff from the web, like bookmarks, highlights, and notes. It’s a good deal with its premium plans, but the old-fashioned design and limited highlight colors might be a turn-off. If you want something that looks nicer and offers more customization, check out alternatives like Web Highlights.	AdBlocker Ultimate is a great extension for blocking ads. Ads on various platforms are removed without the user noticing. Particularly noteworthy are the various options for customizing the settings. The user can control whether the extensions should only be responsible for blocking ads or whether they should also offer support in the areas of data protection and security. Compared to other ad blockers, the additional function of blocking cookie banners stood out, which we no longer want to do without. Overall, we consider AdBlocker Ultimate with its wide range of additional functions to be a reliable option for anyone who wants to remove advertising from their online experience.
	Install Diigo	Install AdBlocker Ultimate
Our Recommendation	In our comparison between Diigo and AdBlocker Ultimate, AdBlocker Ultimate came out on top, scoring 8.9. AdBlocker Ultimate is the most widely used, with over 3 million users and 90k+ reviews—and it also delivered the strongest performance in our tests. User reviews for AdBlocker Ultimate reflect our findings, while we rate Diigo lower than users do. Notably, AdBlocker Ultimate has the highest user rating in the Chrome Web Store at 4.76, which supports its strong performance in our review. There are some noticeable differences between these extensions, so it's worth considering your priorities and the details below. Looking for the richest feature set? AdBlocker Ultimate stands out with a rating of 9.3. On the other hand, Diigo lags behind in this area with a rating of 8.5. Need top performance? AdBlocker Ultimate stands out with a rating of 9. On the other hand, Diigo lags behind in this area with a rating of 8. Design lovers, take note: AdBlocker Ultimate stands out with a rating of 8.5. On the other hand, Diigo lags behind in this area with a rating of 7. Want to get the most for your money? AdBlocker Ultimate stands out with a rating of 9.5. On the other hand, Diigo lags behind in this area with a rating of 8. If you hate complicated tools, AdBlocker Ultimate stands out with a rating of 9. On the other hand, Diigo lags behind in this area with a rating of 7.8. With privacy and security becoming ever more important, AdBlocker Ultimate stands out with a rating of 8.2. On the other hand, Diigo lags behind in this area with a rating of 7.5. If you want a quick recommendation, AdBlocker Ultimate is our top pick. But as always, the best choice depends on what matters most to you.