20 Aug 2026

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Firefox Add-on Reviews: Extension starter pack

You've probably heard about "ad blockers," "tab managers," "anti-trackers" or any number of browser customization tools commonly known as extensions. And maybe you're intrigued to try one, but you've never installed an extension before and the whole notion just seems a bit vague.

Let's demystify extensions.

An extension is simply an app that runs on a browser like Firefox. From serious productivity and privacy enhancing features to fun stuff like changing the way the web looks and feels, extensions give you the power to completely personalize your browsing experience.

Addons.mozilla.org (AMO) is a discovery site that hosts thousands of independently developed Firefox extensions. It's a vast and eclectic ecosystem of features, so we've hand-picked a small collection of great extensions to get you started…

I've always wanted an ad blocker!

uBlock Origin

Works beautifully "right out of the box." Just add it to Firefox and uBlock Origin will automatically start blocking all types of advertising - display ads, banners, video pre-rolls, pop-ups - you name it.

Of course, if you prefer deeper content blocking customization, uBlock Origin allows for fine control as well, like the ability to import your own custom block filters or access a data display that shows how much of a web page was blocked by the extension. More than just an ad blocker, uBlock Origin also effectively thwarts some websites that may be infected with malware.

For more insights about this excellent ad blocker, please see uBlock Origin - everything you need to know about the ad blocker, or to explore even more ad blocker options, check out What's the best ad blocker for you?

I'm concerned about my privacy and tracking around the web

Privacy Badger

The flagship anti-tracking extension from privacy proponents at the Electronic Frontier Foundation, Privacy Badger is programmed to look for tracking heuristics (i.e. specific actions that indicate someone is trying to track you).

Zero set up required. Just install Privacy Badger and it will automatically search for third-party cookies, HTML5 local storage "supercookies," canvas fingerprinting, and other sneaky tracking methods.

Consent-O-Matic

Not only will Consent-O-Matic automatically handle pop-up data consent forms (per GDPR regulations), but it's brilliantly designed to interpret the often intentionally confusing language of consent pop-ups trying to trick you into agreeing to invasive tracking.

Developed by internet privacy researchers at Aarhus University in Denmark who grew sick of seeing so many deceptive consent pop-ups, Consent-O-Matic's decision-making logic is built upon studying hundreds of pop-ups and identifying duplicitous patterns. So using this extension not only gives you a great ally in the fight against intrusive tracking, but you're spared the annoyance of constantly clicking consent forms all over the internet.

I need an easier way to translate languages

Simple Translate

Do you do a lot of language translations on the web? If so, it's a hassle always copying text and navigating away from the page you're on just to translate a word or phrase. Simple Translate solves this problem by giving you the power to perform translations right there on the page.

Just highlight the text you want translated and right-click to get instant translations in a handy pop-up display, so you never have to leave the page again.

YouTube your way

Enhancer for YouTube

Despite offering dozens of creative customization features, Enhancer for YouTube is easy to grasp and gives you a variety of ways to radically alter YouTube functionality.

Once the extension is installed you'll find an additional set of controls just beneath YouTube's video player (you can even select the extension features you want to appear in the control bar).

Key features include…

I'm drowning in browser tabs! Send help!

OneTab

You've got an overwhelming number of open tabs. You can't close them. You need them. But you can't organize them all right now either. You're too busy. What to do?!

If you have OneTab on Firefox you just click the toolbar button and suddenly all those open tabs become a clean list of text links listed on a single page. Ahhh serenity.

Not only will you create browser breathing room for yourself, but with all those previously open tabs now closed and converted to text links, you've also freed up a bunch of CPU and memory, which should improve browser speed and performance.

If you've never installed a browser extension before, we hope you found something here that piques your interest to try. To continue exploring ways to personalize Firefox through the power of extensions, please see our collection of 100+ Recommended Extensions.

20 Aug 2026 1:16am GMT

Firefox Add-on Reviews: YouTube your way — browser extensions put you in charge of your video experience

YouTube wants you to experience YouTube in prescribed ways. But with the right browser extension, you're free to alter YouTube to taste. Change the way the site looks, behaves, and delivers your favorite videos.

Enhancer for YouTube

With dozens of customization features, Enhancer for YouTube has the power to dramatically reorient the way you watch videos.

While a bunch of customization options may seem overwhelming, Enhancer for YouTube actually makes it very simple to navigate settings and select just your favorite features. You can even choose which of your preferred features will display in the extension's easy access interface that appears just beneath the video player.

Key features…

Enhancer for YouTube provides feature controls just beneath the video player.

Return YouTube Dislike

Do you like the Dislike? YouTube removed the display that reveals the number of thumbs-down Dislikes a video has, but with Return YouTube Dislike you can bring back the brutal truth.

"Does exactly what the name suggests. Can't see myself without this extension. Seriously, bad move on YouTube for removing such a vital tool."

Firefox user OFG

"i have never smashed 5 stars faster."

Firefox user 12918016

YouTube High Definition

Though its primary function is to automatically play all YouTube videos in their highest possible resolution, YouTube High Definition has a few other fine features to offer.

In addition to automatic HD, YouTube High Definition can…

YouTube NonStop

So simple. So awesome. YouTube NonStop remedies the headache of interrupting your music with that awful "Video paused. Continue watching?" message.

Works on YouTube and YouTube Music. Now you're free to navigate away from the YouTube tab for as long as you like and never worry about music interruption again.

YouTube Screenshot Button

If you take a lot of screenshots on YouTube, then the aptly titled YouTube Screenshot Button is worth your time.

You'll find a "Screenshot" button conveniently located on the control panel of videos, or at the top of the screen on Shorts (or you can use custom keystrokes), so it's always easy to snap a quick shot. Set preferences to automatically download screenshots as JPEG or PNG files.

Unhook: Remove YouTube Recommended Videos & Comments

Instant serenity for YouTube! Unhook strips away unwanted distractions like the promotional sidebar, end-screen suggestions, trending tab, and much more.

More than two dozen customization options make this an essential extension for anyone seeking escape from YouTube rabbit holes. You can even hide notifications and live chat boxes.

"This is the best extension to control YouTube usage, and not let YouTube control you."

Firefox user Shubham Mandiya

PocketTube

If you subscribe to a lot of YouTube channels PocketTube is a fantastic way to organize all your subscriptions by themed collections.

Group your channel collections by subject, like "Sports," "Cooking," "Cat videos," etc. Other key features include…

PocketTube keeps your channel collections neatly tucked away to the side.

AdBlocker for YouTube

It's not just you who's noticed a lot more ads lately. Regain control with AdBlocker for YouTube.

The extension very simply and effectively removes both video and display ads from YouTube. Period. Enjoy a faster, more focused YouTube.

SponsorBlock

It's a terrible experience when you're enjoying a video or music on YouTube and you're suddenly interrupted by a blaring ad. SponsorBlock solves this problem in a highly effective and original way.

Leveraging the power of crowd sourced information to locate where - precisely - interruptive sponsored segments appear in videos, SponsorBlock learns where to automatically skip sponsored segments with its ever growing database of videos. You can also participate in the project by reporting sponsored segments whenever you encounter them (it's easy to report right there on the video page with the extension).

SponsorBlock can also learn to skip non-music portions of music videos and intros/outros, as well. If you'd like a deeper dive of SponsorBlock we profiled its developer and open source project on Mozilla Distilled.

We hope one of these extensions enhances the way you enjoy YouTube. Feel free to explore more great media extensions on addons.mozilla.org.

20 Aug 2026 1:10am GMT

The Rust Programming Language Blog: Supply chain attack on arrayref

What happened

On 2026-08-20 at 7:15 UTC we got a report that the proc-macro1 crate was malicious.

The Rust Security Response Team verified this to be the case: the crate had a build script that was downloading a malicious payload.

This crate proc-macro1 and others like it (proc-macro-en, aovine, arone, aronenao, tinymember) have been deleted.

Furthermore, we discovered that the popular arrayref crate had recently been republished and made to depend on this crate, with the most recent versions yanked. We have removed the malicious version and unyanked the maliciously-yanked versions. Other crates by that author (internment, append-only-vec) were also affected so we have done the same for those, and locked the account as a precaution. We do not believe the author of arrayref to be acting maliciously, but their computer or credentials are likely compromised, and we are attempting to contact them.

What you need to do

We recommend you check your local dependencies to ensure these crates were not pulled in. Here are the malicious versions that we deleted from crates.io:

You can quickly check if these crates have been used locally by going through ~/.cargo/registry/cache with this command:

find ~/.cargo/registry/cache -type f \( \
  -name 'append-only-vec-0.1.9.crate' -o \
  -name 'arrayref-0.3.10.crate' -o \
  -name 'internment-0.8.7.crate' -o \
  -name 'proc-macro1-*.crate' -o \
  -name 'proc-macro-en-*.crate' -o \
  -name 'aovine-*.crate' -o \
  -name 'arone-*.crate' -o \
  -name 'aronenao-*.crate' -o \
  -name 'tinymember-*.crate' \
\) -print

Thanks

We'd like to thank the Research Team at Nextron Systems GmbH for initially discovering this and reporting it to us. We'd also like to thank Emily Albini, Manish Goregaokar, Marco Ieni, Tobias Bieniek, Ubiratan Soares, and Walter Pearce for participating in the response here.

20 Aug 2026 12:00am GMT