Firefox-Hilfeforum

After just turning on my computer running Windows 10, I opened Firefox. I open 1 web site and noticed my computer showed a (16) prefix when loading Firefox. I opened the Task Manager and it showed that there were 15 instances of "firefox" running in the background. All showed a UAC Virtulization of "Disabled". But they also showed using 638.8MB of memory. I do not know whether these are necessary files that must run in the background or if the number of files indicates that my system has been hacked and someone else is in my system from outside. Any suggestions as to validity of these files running or how I might confirm that they should be running. I have noticed the number of excessive background files before but the number is never consistent which makes me fear I may have been hacked.

I'm new to firefox and would like to set cloudflare for DNS over HTTPS but there seems to be an issue. If I set it to NextDNS the connection stays active. But if I set it to cloudflare it goes inactive with the error (NS_ERROR_NET_TIMEOUT_EXTERNAL). I tried setting a custom DNS to OpenDNS and got the same error.

I'm running Manjaro Linux if that make a difference.

With the update to 115.10.0esr my bookmarks that were on the left hand side of the screen are gone. When I look at bookmarks there are a few, but I had multiple folders for different subjects, I do not find. I would like to have the procedure to return my bookmarks back to the left hand side of the screen with all of my bookmarks, bookmark folders, and other bookmarks like it was prior to the update. Thank you for help, Steve Zimmerman

Once updated Firefox all old tabs didn't open ( and it was not possible to restore them anymore). So I'd like to restore all old tabs of yesterday session. Really important for my work. Looking forward to hearing from you asap. Regards, Orlando.

Currently, I use Firefox version: 116.0.2 on Ubuntu 20.04.6 LTS.

I encountered a phenomenon like this:

• When I logged in to the application, in the tab I was working on, the Firefox session memory was lost (don't open new tabs)

What is the cause of this phenomenon? How can I fix it?

I've recently started using the Tree Style Tab extension, and I'm finding it useful, but I'd like it if the list of tabs could be automatically hidden when only one tab is open (and automatically shown when more than one tab is open).

I hoped to write an extension to do this, but opening the sidebar from an extension requires a user gesture, so I suspect I'll have to use a userchrome.js script.

From a "userchrome.js"-like environment (i.e. unsandboxed AutoConfig), I can hide and show the sidebar with `SidebarUI.hide()` and `SidebarUI.show("treestyletab_piro_sakura_ne_jp-sidebar-action")`, and I can examine the tabs open in the current window via `gBrowser.tabs`, but I can't see how to get notified when the number of tabs changes (replacing `gBrowser.tabs` with a proxy doesn't work, for example). I suppose I could just check every few seconds? That feels like a bit of a cop-out, though, and gets more and more inefficient the more windows are open.

There's an API for extensions to receive events when tabs open and close, so clearly this is possible. Where should I be looking for this functionality?

(I also don't know how I would go about unregistering an event listener (or cancelling a setInterval call!) when the window closes, assuming that's necessary to avoid leaking resources – is there an event like `chrome-document-global-created` I could listen for, but that fires during teardown of the window rather than when one is created?)

I use Firefox as my browser and used to be able to go a web site or to a link from an instructor and when I clicked on the link or entered the class I was attending, the Zoom meeting would automatically open. That doesn't work anymore. I have to "join via browser but I don't have the meeting id. Why has this become so difficult? Zoom denies being the problem so now I wonder if it's the browser.

My Firefox Browser was just upgraded. It seems address bar searches all go through Yahoo.com. Is this by design? Not sure I like the search results...

Hi there,

I just started using my new MacBook Air, and when I try to use the trackpad to open read Gmail or click the calendar icon on Firefox, it doesn't respond. It works on Safari.

As per the photo, I try to click the calendar icon to open up my calendar and nothing happened.

When I try to use needed tools on websites, Mozilla is blocking the page from opening. USPS will not allow me to track a package. When I enter the tracking number, the page just sits on white and the search just spins

Where are all the tabs for the research I was working on? I stepped out of my office for a few minutes and returned to a very proud message declaring that Firefox had auto updated and now better than ever. Only all my tabs are gone. Why does every other browser save and restore tabs when updating, but not Firefox??? Do I have to go back to Safari or Chrome? This cannot happen!!!

I noticed that Firefox implemented an update today at 10:36 (CST). I have noticed that since that point I can no longer click the login button for my ShipStation platform. I can login without issue through Chrome, but prefer to use Firefox. I have cleared my history for ShipStation in Firefox. I have restarted my computer. The page loads, but clicking on the login button has not result - nothing happens.

Please help!

Most of the time I cannot print my emails because an "add blocker" is installed. So now, I no longer use Firefox, since when I use Microsoft, I have no such problem.