Trust is gone
If you've got Comodo's browser installed on your machine or using certificates issued by them on your server, get rid of it.
FTFY
Google security boffins have thrown the book at Comodo for turning off Chrome security. As explained in this advisory today, users who install Comodo Internet Security may not realize that their Chrome installation is replaced with Comodo's own browser, Chromodo. That little bit of crapware isn't secure at all: it's set as …
On their Dragon (Chrome) and IceDragon (Firefox) browser offerings?
I don't use Dragon, but I do use IceDragon with various addons (ublock, ghostery, disconnect, noscript) for perusing the occasional grumble flick site.
Might not take the chance, and just purge it from my system when I get home.
"But it would need to be listening to you all the time for it to be able to detect "OK Google" being said."
All the time only when on the New Tab page or google.com and when enabled. (Which it wasn't by default.)
"This is a privacy issue and there should be a way to disable this or be prompted for it to be installed. That's the problem."
Though the plugin download did happen automatically whether you wanted it or not, the "OK Google" behavior was opt-in, so there was no need to disable anything as far as privacy is concerned. That said, they removed the feature entirely back around October 2015 in Google Chrome proper. If I recall correctly, which I may not, Google removed the automatic download from Chromium before that; Debian and many other distributions most certainly did remove it long before.
Chrome's real privacy issues stem from the "omnibox" sending everything you type into it to your selected search engine, the navigation error features, the "prediction service", the link prefetching, the "dangerous sites" protection (presumably what's mentioned in this article), telemetry data, and a few other "features".
Really? because google say so? If google think you shouldn't be running it I'm tempted to automatically think comodo are doing something right.
Of course google don't want anyone putting anything in the way of them snooping all your web activity and history.
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