Avast Online Security & Privacy
Extension Actions
CRX ID
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Status
- Extension status: Featured
Description from extension meta
Avast browser security and web reputation plugin.
Image from store
Description from store
Avast Browser Security - web reputation plugin
Avast-powered security for your Google Chrome browser.
Browse without worry or fear with Avast in your corner: we’ll check every site you visit, from Facebook to your bank, to ensure nothing puts you or your data at risk. We stop phishing attacks, show user reviews, and warn you if a site is deemed untrustworthy by our community of 400 million.
• Identifies and blocks phishing sites trying to steal your data
• See how website has been rated by a growing community of 400 million Avast users
• Easily check the rating of any website just by hovering over the link
• Warns you when you’re visiting websites with bad reputations
• If you have Avast Secure Browser installed, we’ll open it automatically when you shop or bank online to help protect your data
• Blocks annoying tracking cookies that collect data on your browsing activities
What data we collect
• URL - to check if the website is safe or not
• User's feedback - to tell whether the site rating and classification you received are relevant
• Usage data - To measure user’s behavior in UI and how user interacts with the extension
• Internal extension identifier(GUID) - to distinguish unique malware hits, to measure product telemetry and calculate aggregated statistics
• Information about device (Browser type, Operating System Version) - To obtain usage aggregated statistics
• Country - to detect country specific malware campaigns, to measure product telemetry and calculate aggregated statistics
NEW: Now you can vote for new features and submit your own ideas here https://portal.productboard.com/xulwvnojptubz1inywhyomen
By installing this extension to your browser, you confirm you read and agree to Avast's Privacy Policy (https://www.avast.com/privacy-policy) and End User License Agreement (https://www.avast.com/eula) which govern your download and use of the selected product.
Latest reviews
- sara mutiara
- i love it
- Michael Wutzke | YARD
- I installed Avast Online Security & Privacy and visited a legit website published by a legit German company. The plugin showed by that this website is a phishing site, which I can personally confirm is 100% not true. I can only say that my first attempt of using the Avast plugin was not success. JUST BLOCKING LEGIT SITE IS NOT A WAY HOW TO ENABLE USERS ON THE INTERNET. Look under the hood, do not get convinced by marketing! Sorry, I uninstalled Avast, because it simply sucked.
- J J
- Very weak with limited blocking. I'll stick with UBO Lite and Privacy Badger together.
- Kieran Doudrick
- sucks, all I have to say
- Roberto Pussini
- I understand there may be false positive, but when you report them and they ignore you, there is something wrong with their management. So you end up having warnings on safe websites. If they fix this, it will be a good product again. update (28 apr): took awhile but they removed from blacklist the url i reported. But i did not recive any notification, just checked myself
- Coot Master
- @Roberto Pussini Apr 19, 2025 "I understand there may be false positive, but when you report them and they ignore you, there is something wrong with their management. So you end up having warnings on safe websites. If they fix this, it will be a good product again." i called them at start of the month, Adam was VERY angry w me that for 15 years i never payed up I HUNG UP on him he was angry i was using free version it locked my web page AGAIN!! i went to WOT Web OF Trust Roberto Pussini AVG ALSO BLOCKS EVERYTHING
- Savitri Devi
- block to visit safe website also.. without reason
- Wayne
- I love this extension. Blocked annoying ads and some viruses. Downloading the avast app would block the viruses more effectively.
- Anonymous
- excelente
- Vladislav
- Blocks ads. Pretty good. I have been using it for many years.
- J J
- Wants me to upgrade after installing. Use Privacy Badger extension and UBO or UBlock Lite and you will be much better off. This extension is really useless.
- Laurel Deville
- Cookie pop up stopper doesn't work any more and neither does the "report a problem" button.
- Jacky Chun
- After installation, I rejected all ads in settings. However, just like my computer was infected, it popped up multiple advertising company websites. On the other hand, if it can't detect threat extensions, this feels like a disadvantage.
- hardcore minecrafter
- Perfect
- Daniel Peterson
- Please code it so the link verifier thing is on all websites.
- Rinatya Nessim
- Cannot whitelist sites I know are safe, but Avast thinks not...
- YP Poe
- Well, you can click on it, so Avast got that part right. That's the only discernable thing it does that Avast says it does, that, and eliminate Avast from further consideration as a potential security solution. #inept.
- Mg Bhadurudeen
- So many false positives, A legit website is not loading due to this waste plugin. Avast has become useless, better to switch to other software.
- KS LGD
- 介绍页面上说能检测网站上链接的评级, 瞎说! 估计指的是搜索结果打个勾（不一定可靠 是否存在背调数据库）。实时行为分析在付费版有个web分析（不知道有啥用），如果是在线分析且服务器在海外，网络延迟和内存开销不容忽视。拦截去广告属于基础功能（有更好的替代，Adblock等）了。综上 提供鸡肋的功能却能低成本收集可靠的用户和网站安全数据。。。难道没有更好的选择么？推荐MalewareBytes!
- SkipSpotter
- Been a really faithful AVAST user for a few years now, but I have decided to look at other companies and products - when my subscription ends. Firefox used to be my goto browser, but lately, Google Chrome has peaked my interest as it is simply a lot faster. This has been a problem however, owing to lack of any decent addon/extensions and user options for the AVAST VPN. The only CHROME extension for AVAST is really pointless, as It just shows a very basic set of details, but NO option to control the VPN. This has been a major factor, along with several other useful controls which the AVAST extension has no access to. I must add as a footnote, that having been using the AVAST ONE product for a while, I have begun to dislike the silly artwork and layout. The previous AVAST application was so much more direct without any extra distractions. The artwork used in the options pages look like a young child drew them. Anyway, like I have said, not having any VPN add on for CHROME has been my biggest gripe. Sorry Avast, but thats sadly how I feel
- Minh Thanh 2k8 (Minh_Thanh_BG)
- Very Good Very Useful
- Farzan Saputra
- This extension is very useful
- Oskar Perers
- Apparently this app steals all your data. Dont use!!!
- Johnson Tsai
- Search results scanning does not work on lazy/delay loaded content in Google search. Steps to reproduce: After Google search results appear, scroll down the page to see more results come out without Avast scanning labels.
- Johnson Tsai
- Search results scanning does not work on lazy/delay loaded content in Google search. Steps to reproduce: After Google search results appear, scroll down the page to see more results come out without Avast scanning labels.
- Harmony
- a tip if you're on a school computer, get this and then get ultra surf and use ultra surf never use this
- Game of THRONES
- It's too much blocking websites. Even if I press to access the site, it blocks access to the site at the source.
- Game of THRONES
- It's too much blocking websites. Even if I press to access the site, it blocks access to the site at the source.
- Antonio Cer
- el producto es bueno pero me marca el sitio de avast como peligroso afortunadamente estan protegidos contra ustedes miswmos y no me contestaron ni en latam ni usa-es
- Oleg Poludnenko
- Why are you blocking allinclusivecrm.com ?
- Oleg Poludnenko
- Why are you blocking allinclusivecrm.com ?
- something darkside
- Not sure how reliable this extension is. It labelled the site Katycollection.com as safe but then Avast's own webshield blocked a connection on the site for phishing. Literally no idea how reputation for sites is even established by this extension.
- something darkside
- Not sure how reliable this extension is. It labelled the site Katycollection.com as safe but then Avast's own webshield blocked a connection on the site for phishing. Literally no idea how reputation for sites is even established by this extension.
- Link
- For some reason, Crunchyroll is unable to login while this extension is installed.
- Link
- For some reason, Crunchyroll is unable to login while this extension is installed.
- Davi Guedes dos Santos
- não tem opção de idioma, ficar tudo em inglês, não entendo nada.
- Michael McBride
- Does the free extension have a whitelist? That's the only feature I seem to be missing at the moment.
- Michael McBride
- Does the free extension have a whitelist? That's the only feature I seem to be missing at the moment.
- Francisco Garzón Flor
- PARA MI EL MEJOR ANTIDETODO
- Guddu Pal
- dependent on it
- Guddu Pal
- dependent on it
- Tariq Al shehemi
- Where did tracking protection go? It's a shame that half of the features are behind a paywall. Might as well just make the extension a list of links you can visit to opt-out of popular advertisers.
- Tariq Al shehemi
- Where did tracking protection go? It's a shame that half of the features are behind a paywall. Might as well just make the extension a list of links you can visit to opt-out of popular advertisers.
- Carles “Carlos, Papa.” V
- Yo creo que es muchísimo mas seguro que cualquier otro, no puedes entrar en ninguna web i a demás no te hacen ni caso en la web. Perdón, a la web de Avast tampoco me deja entrar. Tienen varios problemas, uno de configuración inicial y otro de olvidarse del cliente. I think it's much safer than any, I can't connect with any website and neither do they pay attention to you. I apologize to the Avast website for me, they don't connect me either. Be careful, there is a story, at tribunals, that they sold the addresses and their characteristics of their subscribers.
- Jesús Gabriel Quijada Méndez
- Muy util y practico.
- Daniel De Jesús Hernández
- Hasta el momento, me siento muy cómodo y protegido usando la extensión de Chrome. Me da mayor seguridad a la hora de navegar por la web:)
- Andreas Uhlig
- von 20 Webseiten, kann man nur noch 1-2 Seiten aufrufen. Der Rest ist nicht erreichbar. Will mein Geld zurück!!!
- Max Morais
- É leve e funcional, indica o nível de segurança do sites. Só a função de anti-rastreamento que faz parte da versão Pramium, por isso há outras extensões que a tem gratuitamente.
- Christopher Davis
- If figured out Avast is tracking and selling data to advertisers. I have uBlock Origin installed and I was randomly getting a popup warning about advertising tracking no matter what site I'm on. At first I didn't know what was causing it. When I disable the Avast extension this it warning stops.
- Christopher Davis
- If figured out Avast is tracking and selling data to advertisers. I have uBlock Origin installed and I was randomly getting a popup warning about advertising tracking no matter what site I'm on. At first I didn't know what was causing it. When I disable the Avast extension this it warning stops.