Back up your ~/.mozilla folder, delete it and reopen Firefox. This will create a fresh Firefox profile. Make sure that Firefox's built in pop up blocker is enabled. Then navigate to websites that are generating pop-ups that normally don't.
If the pop-ups persist, then either your computer has been hijacked (wiping your HD and re-installing the OS might fix) , your modem/router has been hijacked (check your modem/router for firmware updates), or shenanigans are occuring through your ISP (which you probably can't do anything about). On Jul 10, 2017 5:58 AM, "Fungi4All" <fungil...@protonmail.com> wrote: UTC Time: July 10, 2017 12:27 PM From: anilduggir...@fastmail.fm To: debian-user@lists.debian.org On Mon, Jul 10, 2017, at 02:43 AM, Dejan Jocic wrote: > On 09-07-17, Anil Duggirala wrote: > > hello, > > Ever since I moved to Stretch I have had pop-up windows popping up all > > the time (clicking on various items on various types of pages). I am > > posting here, since this is only happening in my Debian installation. > > Was anything changed in the default configuration of Firefox. It feels > > like Windows with all of these pop-ups, this is the first time I > > experience anything like this in a linux installation. > > thanks, > > > > In firefox you have option to block pop-up windows. Go to preferences, > it is under content. And install some add blocker. For me, best is : > > https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/ > > You can also install script blocker, like this one: > > https://addons.mozilla.org/en-US/firefox/addon/noscript/?src=ss > > With all that on, you will be pretty safe against pop-ups. > Thanks for the suggestion for add blockers. What I guess I am saying is; even in websites that I know would never include pop-up ads, when clicking on something, I am getting a pop-up with some add. It feels like a virus, like something that is affecting Firefox (I havent tested other browsers) at the system level, or at least at the program level. It feels like some bad software is affecting Firefox. For example, when clicking on a dropdown box, a new window is opened with some ad, I know this is not being done by the website I am navigating. thanks a lot, Check your addons in firefox and your homepage. This sounds like a hijacking activity. But there is a difference between pop-up and ad-blocking. Ad-blocking works whether they pop or are within the page. Pop-ups may not necessarily be ads. You can also add the No-Script addon to only allow what you want scripts on. But this is all browser related, not system.
