"Stylish" browser extension steals all your internet history!

I initially installed stylish to get rid of white flashes from using the dark theme userscript but uninstalled it just now since this. No big deal for me to not use it. Thanks for the PSA.

Can't uninstall what was never installed. But I see it's an open-source project. If I would use it, I'd do so with my own build with the spyware stripped out. Thanks for the warning!

Use the Stylus extension instead (Firefox, Chrome). It's open source and doesn't contain any spyware.

Absolutely horrifying.

I was using the legacy version of Stylish for Firefox and that apparently did not have the spyware in it. It was in the Chrome version when it came out and only recently included in the Firefox version. Basically (I think) if there is no option to opt-out then it doesn't have the spyware. Still I uninstalled Stylish and installed Stylus as I don't want to support any company that does this.

Thanks for the info, I just removed it. The only thing I was using it for was a dark theme for SG and I already have Tampermonkey installed. I didn't know I could also use the dark theme through Tampermonkey. From what I hear in the news almost every day, I'm sure there are plenty of other companies already spying on me and selling my info, but one less is a start.

I am very not surprised

Can't happen if you keep using Internet Explorer. ¯\_(ツ)_/¯

Not using this, but bump for awareness!

Whoever at SimilarWeb approved this, as well as those who implemented it, should be thrown in jail. But seeing SimilarWeb is based out of Israel (a place which has very weak privacy laws afaik) they probably wont be.

I've been using Stylish for a long time, and yesterday or day before that I got a pop-up in Firefox saying: "Stylish - Custom themes for any website is known to cause security or stabilility issues." and they automatically disabled it. However I choose to have it activated anyway, because I didn't think they would actually do something like this. I'm glad you made this thread, now I know what the Firefox's warning was about and I'll delete the extension.

I wonder can I have them remove all information collected about me by invoking GDPR. I assume I just need to send them (Stylish owners) an e-mail saying I want my information deleted?

I only had it because of the color theme SG thingy and then when it stopped supporting it, I never removed Stylish nor downloaded other extensions so it was just silently sitting there watching me all this time...

I found this on Stylish website about how to request deletion of data under applicable law (such as the GDPR in Europe).

Where provided under applicable law (such as within the European Union), you may have the right to ask us to delete Personal Information which you have provided to us, subject to applicable exceptions, such as in order to preserve that information for anticipated litigation or demands from a regulator, or some or all of the following rights: the right to obtain information on our use of your Personal Information, the right to obtain a copy thereof, the right of data rectification, the right to data portability, the right to object to processing based on our legitimate interests, the right to restriction of the processing, and the right to withdraw your consent. To assert any of these rights, please contact our Data Protection Officer at: dpo@userstyles.org. Note that we may request proof of identity, and we reserve the right to charge a fee where allowed by law, such as in circumstances where your request is excessive. In addition, you may have the right to lodge a complaint with a supervisory authority, subject to applicable law (as is the case in the European Union).

Basically send an e-mail to their "Data Protection Officer" at dpo@userstyles.org asking for deletion of data collected from you. Do note that they might request proof of identity or ask for a fee to delete data.

Thank you for heads up, uninstalled.

Oh wow! Thank you bump

Found out that I had both Stylish and Stulus in my Firefox. Firefox had automatically deactivated Stylish so I guess no big harm done. Now its definetly removed instead. Thx for the headsup.

Thanks a lot for this, switching to Stylus now!

Is Stylebot safe?

trash extension, it went down a few month ago with their new updates...
stylus is way better and cleaner. ❤️️

Good to know, but Stylish is crap anyways - Stylus is much more reliable all-in-all.

I've been using this instead:
https://addons.mozilla.org/en-US/firefox/addon/styl-us/
https://chrome.google.com/webstore/detail/stylus/clngdbkpkpeebahjckkjfobafhncgmne

Privacy Policy
Unlike other similar extensions, we don't find you to be all that interesting. Your questionable browsing history should remain between you and the NSA. Stylus collects nothing. Period.

I did notice Stylish got turned out by FF, didn't know it's due to something like that. So thanks for info :D

i don't mind, as long as it's "stylish" enough.

it really depends on what you're offering me in exchange.

that said, thanks for PSA!