Live data from Hacker News

LinkedIn is searching your browser extensions

browsergate.eu

631–640 of 836 posts

Re: LinkedIn is searching your browser extensions

#631

I don't have a linkedin acct. So imagine my shock when I "googled" myself and found a linkedin profile connecting my name to a company I presently have a consulting arrangement with (1099 not W2). I went ballistic and fired off an email to the consulting firm to take down the profile immediately or face legal action (a bluff). Couple days later, the company forwarded an email they received from linkedin confirming th…

What's the path for that to even happen?

Are companies now commonly uploading lists of employees to LinkedIn? Is this happening automatically because you got an e-mail account from the company and the company runs on MS Office and you're identified as am employee within it? What triggered it?

This seems like somewhat of a scandal that deserves its own post, but it also needs a lot more details to be trustworthy and for people to understand what exactly is happening.

Also, was there some way for you to take ownership of the profile? Did it depend on verifying a certain e-mail address? Does it require you to get the company to remove it, or could you take ownership and then delete the LinkedIn account/profile yourself?

Re: LinkedIn is searching your browser extensions

#632
post #14

The headline seems pretty misleading. Here’s what seems to actually be going on: > Every time you open LinkedIn in a Chrome-based browser, LinkedIn’s JavaScript executes a silent scan of your installed browser extensions. The scan probes for thousands of specific extensions by ID, collects the results, encrypts them, and transmits them to LinkedIn’s servers. This does seem invasive. It also seems like what I’d expect…

> I’m not deeply familiar with what APIs are available for detecting extension

Here is what the article says:

Method 1

    async function c() {
      const e = [],
        t = r.map(({id: t, file: n}) => {
          return fetch(`chrome-extension://${t}/${n}`)
        });
      (await Promise.allSettled(t)).forEach((t, n) => {
        if ("fulfilled" === t.status && void 0 !== t.value) {
          const t = r[n];
          t && e.push(t.id);
        }
      });
      return e;
    }
Method 2

    async function(e) {
      const t = [];
      for (const {id: n, file: i} of r) {
        try {
          await fetch(`chrome-extension://${n}/${i}`) && t.push(n);
        } catch(e) {}
        e > 0 && await new Promise(t => setTimeout(t, e));
      }
      return t;
    }
The API is making an HTTP request to

    chrome-extension://${store_id}/${file_name}
There is then a second stage where they walk the DOM looking for text signatures and element attributes indicative of the store_id values

It looks like the user has the freedom to manage this by launching chrome with this flag: --disable-extensions

It also seems there is an extension for extension management to deny extension availability by web site: https://superuser.com/questions/1546186/enable-disable-chrom...

Re: LinkedIn is searching your browser extensions

#633

this is a massive violation of trust > The scan doesn’t just look for LinkedIn-related tools. It identifies whether you use an Islamic content filter (PordaAI — “Blur Haram objects, real-time AI for Islamic values”), whether you’ve installed an anti-Zionist political tagger (Anti-Zionist Tag), or a tool designed for neurodivergent users (simplify).

It's for fingerprinting and possibly ad targeting.

It's no different from when you visit an Islamist or anti-Zionist website that has analytics/trackers/ads on it.

It's bad, but this "massive violation of trust" is happening everywhere and has been for decades. There's nothing that's unique to Microsoft here.

Re: LinkedIn is searching your browser extensions

#634

Earlier quoted context omitted.

I mean yeah, you pay for the internet. But many sites are free to use only due to ads. Such as news and magazine sites, many of which are actively dying due to a lack of revenue. I personally wish these sites could all switch to paid models, because I also don’t like ads. But absent that, I’d like to support the sites I use so that they don’t go out of business.

I have expensive online subscriptions to New York Times, Wall Street Journal, and Washington Post. Nevertheless they are FILLED with ads/popups/videos that run automatically/dark patterns. Just saying: there's no refuge.

True, but that doesn’t invalidate what I said about the vast majority of sites that aren’t globally known, prestigious news companies that people are willing to pay an expensive subscription for.

Most publishers of content online are ad supported and struggling, and I want to make sure I’m contributing to their revenue somehow.

I don’t feel bad about blocking ads on sites I pay for though.

Re: LinkedIn is searching your browser extensions

#635

Earlier quoted context omitted.

> How is probing your browser for installed extensions not "scanning your computer"? I think most people would interpret “scanning your computer” as breaking out of the confines the browser and gathering information from the computer itself. If this was happening, the magnitude of the scandal would be hard to overstate. But this is not happening. What actually is happening is still a problem. But the hyperbole underm…

> I think most people would interpret “scanning your computer” as breaking out of the confines the browser and gathering information from the computer itself. That is exactly how I interpreted it, and that is why I clicked the link. When I skimmed the article and realized that wasn't the case, I immediately thought "Ugh, clickbait" and came to the HN comments section. > To reiterate, at no point am I saying this is g…

[dead]

Re: LinkedIn is searching your browser extensions

#636

Earlier quoted context omitted.

I integrate these kinds of systems in order to prevent criminals from being able to use our ecommerce platform to utilize stolen credit cards. That involves integrating with tracking providers to best recognize whether a purchase is being made by a bot or not, whether it matches "Normal" signals for that kind of order, and importantly, whether the credit card is being used by the normal tracking identity that uses it…

What I'm wondering is if this requires sending the full list of extensions straight to a server (as opposed to a more privacy-protecting approach like generating some type of hash clientside)? Based on their privacy policy, it looks like Sift (major anti-fraud vendor) collects only "number of plugins" and "plugins hash". No one can accuse them of collecting the plugins for some dual-use purpose beyond fingerprinting,…

The SOP of this entire industry is "Include this javascript link in your tag manager of choice", and it will run whatever javascript it can to collect whatever they want to collect. You then integrate in the back end to investigate the signals they sell you. America has no GDPR or similar law, so your "privacy" never enters the picture. They do not even think about it.

This includes things like the motion of your mouse pointer, typing events including dwell times, fingerprints. If our providers are scanning the list of extensions you have installed, they aren't sharing that with us. That seems overkill IMO for what they are selling, but their business is spyware so...

On the backend, we generally get the results and some signals. We do not get the massive pack of data they have collected on you. That is the tracking company's prime asset. They sell you conclusions using that data, though most sell you vague signals and you get to make your own conclusions.

Frankly, most of these providers work extremely well.

Sometimes, one of our tracking vendors gets default blackholed by Firefox's anti-tracking policy. I don't know how they manage to "Fix" that but sometimes they do.

Again, to make that clear, I don't care what you think Firefox's incentives are, they objectively are doing things that reduce how tracked you are, and making it harder for these companies to operate and sell their services. Use Firefox.

In terms of "Is there a way to do this while preserving privacy?", it requires very strict regulation about who is allowed to collect what. Lots of data should be collected and forwarded to the payment network, who would have sole legal right to collect and use such data, and would be strictly regulated in how they can use such data, and the way payment networks handle fraud might change. That's the only way to maintain strong credit card fraud prevention in ecommerce, privacy, status quo of use for customers, and generally easy to use ecommerce. It would have the added benefit of essentially banning Google's tracking. It would ban "Fraud prevention as a service" though, except as sold by payment networks.

Is this good? I don't know.

Re: LinkedIn is searching your browser extensions

#637
post #618

Earlier quoted context omitted.

It would be news to me that Firefox steals data or claims copyright on my data - do you have anything concrete to back that up?

It was their terms of service change at the start of 2025. It caused quite a shitstorm.

So essentially a bunch of noise that didnt really mean anything concrete?

Re: LinkedIn is searching your browser extensions

#639

Earlier quoted context omitted.

Every browser should have ad blocking technology included and enabled by default. I do not understand why Apple in particular has not pushed this with Safari, as they like to portray that they care about privacy. I get why Chrome doesn't, and that's why you should not use it. But Netscape? Edge? What is stopping them? Browsing the web without an ad blocker is a miserable experience. Users who have never tried or don'…

Google pays Apple 20+ billion dollars annually to be the default search engine in Safari. I don't know whether the absence of ad blocking is a stipulation in that deal or not, but I have to imagine that if Apple blocked ads in Safari by default, that deal would not be renewed.

Apple is worth nearly $4T. I think they can afford to take a principled stand here, especially considering the current mood about big tech.

And I don't think Google would lightly give up being the default search engine on the dominant mobile platform in the USA, and significantly more dominant among upper-income users.

Re: LinkedIn is searching your browser extensions

#640
post #340

Earlier quoted context omitted.

> I think most people would interpret “scanning your computer” as breaking out of the confines the browser and gathering information from the computer itself. That is exactly how I interpreted it, and that is why I clicked the link. When I skimmed the article and realized that wasn't the case, I immediately thought "Ugh, clickbait" and came to the HN comments section. > To reiterate, at no point am I saying this is g…

But LinkedIn is the one social network many people literally cannot escape to put food on the table. I don't care about how much spying is going on in ESPN. I can ditch it at the shadow of a suspicion. Not so with LinkedIn. This is very alarming, and pretending it's not because everyone else does it sounds disingenuous to me.

You can also just browse LinkedIn with a browser that doesn’t have extensions installed, if privacy is that important to you.

Like everyone else on this thread, I’m not condoning it or saying it’s a good thing, but this post is an exaggeration.

Post reply on HN