Firefox Support Forum

Is it possible to open Firefox from command line (or shortcut) without loading the URL or tab bars?

My current workaround is to load the URL and then click a bookmarklet which opens the tab in a popup window. Is there a way to open a link directly in a popup window?

I've scanned about:config to no avail, and it seems all the popup extensions just do what my bookmarklet does.

Ideally there would be a command line flag like --popup which does exactly that, but the closest thing I could find is --headless and --kiosk which don't work that way.

I also made a new profile named "popup" and intended to add extensions which hide the nav bar, but it looks like extensions aren't allowed to do that any more.

Can I turn off the "control media playback via hardware media keys on a keyboard or headset or virtual media control interface" function? (Firefox 81.0, Windows 10)

I have set to block auto play in options but videos still start, some full size, some go to the top right corner but still play.

Can someone tell me how to set each of the auto play settings in about.config I don't want to mess with it when I am unsure.

I have Windows 10 Version 20 H2 (OS Build 19042.685 and FF 84.0.2

Thanks in advance

Apparently Mozilla did an update and not it defaults to it's own printer dialog box. I hate it. There is a link to use the system print dialog box but it only works for that specific print job. I can't find a setting to force Firefox to always use the system printer dialog box. Anyone know how to fix this? It's enough to make me stop using the browser becasue thr Firefox dialog box sucks.

Hello,

I am looking for a way to hide my tab bar when there is only one tab open. I almost found the solution there: https://support.mozilla.org/en-US/questions/1297983 But it is not exactly what i am looking for. This solution hides the tab but not the tab bar it self. I mean it leaves some black empty space because i use dark theme.

I kept looking for a solution to hide the container. I found this one: https://support.mozilla.org/en-US/questions/1271391 The problem is: this solution hides all the time the tab bar. No maters how many tabs opened.

I experimented mixing these two solution. I have try:

1. tabbrowser-tabs tab[first-visible-tab="true"][last-visible-tab="true"] + #mainwindow:not([tabsintitlebar="true"]) #TabsToolbar {

 visibility: collapse;

}

I tried the other way around, with "#mainwindow" first. I tried without the "+" sign. But none worked out.

Hi,

Talking briefly about the size of games nowadays and SSD, i checked some stuff and saw Firefox writing 4.5 Mo/s (= MB/s). I wanted to see what that was, and saw it's mainly firefox cache. From there i searched and found a few sites suggesting and showing the settings to change to switch from disk cache to RAM cache. I did so since i've enough free RAM from a little while now. Changed settings (in about:config):

• browser.cache.disk.enable from true to false
• browser.cache.disk_cache_ssl from true to false

browser.cache.memory.enable was already on true and browser.cache.memory.capacity on -1 (not sure it's the best setting, only displaying 32768 KiB in about:cache... Any insight appreciated).

The concern: Cf. title, about:cache is still displaying the cache is also on disk, while i don't see writings being done related to the cache on the SSD. Is it just a display error in this configuration, or is there something else? If it's an error, i guess i should report it if it's not already done on the appropriate platform after.

Also, i hope the 4.5 Mo/s was just a peak, because if it's constantly like that if you've Twitch opened for instance, that's a major issue. On a SSD like the Samsung 850 EVO 250GB with its small TBW of 75, that's slightly less than 193 full days.

I am using "browser.link.open_newwindow.restriction" to force links that normally open in new windows, to instead open in new tabs. It all works fine, except when I click those links, Firefox switches to the new tabs immediately when I click them. I would like the tabs to open in new tabs but I do not want Firefox to immediately switch to them.

Please note that I have unchecked "When you open a link in a new tab, switch to it immediately". Meaning, Firefox correctly does not switch to new tabs for normal links. However, it is switching to the new tabs for links that would normally open in new windows.

I have been trying to watch Netflix on Firefox, I made some security changes and at first thought that I may have caused the problem, but now I see that the add-on just fails to install. It just keeps the notification that it is installing. Is there a way to fix this issue?

In Ubuntu 18.04, I bring up a new page, click in the search bar in the middle of the page. Then when I start typing it jumps to the address bar although I have already placed and preferred the search bar to the right. No! NO! NO!

I use Duck Duck Go but Google does the same.

It is bad enough that the upgrade was automatically loaded but on top of that, changing preferences including dumping my home page. Change privacy settings without asking ( to a lower level on top of that ).

Really POOR form.

I've been using Firefox for many years, and search results have always opened in a new tab by default. Now, with Firefox 81.0.2, they're opening in the current tab, and I can't figure out how to get back the old way. Does anybody know?

I was following this reddit thread on how to remove the "your camera and microphone are being shared" popup, but it's having no affect.

I have set `toolkit.legacyUserProfileCustomizations.stylesheets` to true.

Here's the full contents of the userChrome.css file: ```

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");

#webrtcIndicator {
  display: none;
}

```

Hi,

When I go to Facebook on Mozilla and try to use the messenger app to run a video call (using microsoft surface running windows 10), the default camera is my rear facing camera. There is no toggle i can see to switch it to the front camera. I cannot do so in window settings and have spoken with Microsoft support which tells me to call mozilla support. I cannot do it in any of the facebook settings either. I cannot do it with camera settings in mozilla either. I can use the front camera successfully from chrome! I can from Edge! I can from Zoom. I like mozilla and want to keep using it but if I can't resolve this I will likely just switch to chrome permanently. Please let me know how to select the default camera in mozilla. Thank you.

1) Because the built in options are ambiguous I want to flush the temporary Cache storage directory myself, but I can't find it. Where is it? 2) Then I want to relocate it, but here are Mozilla's instructions for how to reset it:

==

To set Firefox's cache folder, first type “about:config” (omit quotes throughout) into the program's address bar and then hit “Enter.” Right-click on any of the displayed properties, select “New” and then select “String” to display the New String dialog box. Enter “browser.cache.disk.parent_directory” into the box and then click “OK” to display the New Value dialog box. Enter the full filepath to the folder you wish to use as the cache folder, and then click “OK.”

==

Doesn't work.

So, after finding the current location and flushing it how do I change it?

Hey there, awesomes! I'd like to change my Firefox pdf viewer's background color (both sides of the pdf) to dark, currently it shows light gray (see `background_bg.png`). And here is effect I want it to look like (see screenshot from Chrome `wished_bg.png`). Thanks in advance (:

PS: I don't want to change my theme to dark. It seems I have to change my css, but I dunno which & how.

Hi,

Is there a way to disable the little notification that pops up showing what url is being loaded or that pops up when you mouse over a link in the bottom left of the browser?

I'm using an OLED and am trying to disable as many re-current static objects as possible. In my 25 years of web browsing I've never found this to be a useful feature so I'd rather it be disabled.

I can't seem to find any settings pertaining to it and all the info I can find on disabling is quite old and doesn't seem to be accurate anymore.

Any tips would be very appreciated.

Everytime I open the suggestions in the address bar Search with Google or Search with Amazon appear at the top. You cannot remove them by using the 'forget about this site' feature and if you change the browser.urlbar.openViewOnFocus to 'False' you don't get the suggestions. Can you tell me how to permanently remove Search with Google or Search with Amazon from the suggestions. Thank you.

I like playing flash games on windows firefox but adobe flash player no longer works, Does anyone know any flash player alternative/replacement for windows firefox?