Firefox supportforum

With FF 81, I see the PDF reader has switched to a light theme, and I don't see a way to switch back to dark theme, the way it was before. How do I do it?

Thanks.

I have a custom add-on that I'm working on for my team. It's hosted internally on a server signed by our company's internal CA. The add-on is signed by Mozilla, but not hosted on AMO.

I am on the latest version of Fedora running Firefox 81.0. In the browser console I get this error relating to the URL for the addon when I tell Firefox to check for updates: "Certificate issuer is not built-in".

I have the company CA installed and when I navigate to the site in the browser, Firefox recognizes the cert. I've done some reading on the subject and seen several threads about it. I've tried a few things already, but most of the threads where a couple of years old.

I'm asking the question here hoping to figure out what the current state of the problem is and which settings I should tweak to have it trust the company CA or what my options are.

Thank you in advance for any support on the issue.

Hi,

I'm used to deploying/configuring Firefox in an organization with settings in autoconfig.js, etc. Recently, I've seen that some settings are honored, others aren't, so I started using policies.json as well as keeping my autoconfig.js. Can they work together?

In any case, I am unable to disable app update with either of them. I have the following in policies.json:

{

   "policies": {

"DisableFirefoxAccounts": true, "DisablePocket": true,

       "DisableAppUpdate": true,

"DontCheckDefaultBrowser": true, "DNSOverHTTPS": { "Enabled": false }, "Certificates": { "ImportEnterpriseRoots": true } "PopupBlocking": { "Allow": ["http://10.215.144.56:8080", "https://intranet.mydomain.org"], "Default": true | false, "Locked": true | false }

   }

}

I'm also showing a snippet of my autoconfig.js file:

lockPref("app.update.auto", false); lockPref("app.update.enabled", false); lockPref("app.update.mode", 0); lockPref("app.update.service.enabled", false); lockPref("app.update.disable_button.showUpdateHistory", false); lockPref("app.update.url", ""); lockPref("app.update.url.details", ""); lockPref("app.update.url.manual", ""); lockPref("signon.rememberSignons", false); lockPref("extensions.update.enabled", false);

The problem is that when I start Firefox 78.3.0 ESR and go to the about Firefox window, I can see that the app update is not disabled.

How can I make sure that all the above settings in autoconfig.js are actually honored?

Thanks

I'm using OpenSuSE Leap 15.2 , updated Firefox these days, and now when I click on the menu, it opens and shows up to the right, out of the screen (when maximized). Also when I hover over options close to the right edge of the screen, the bubbles show partly out of the screen, same as the main menu. I've tried Refresh, Safe Mode, downgrading to a previous version, but nothing helps now Mind the menu on the screenshot.

Any ideas?

best, Istvan

Hi community,

I found I cannot open any local directory, like "file:///home/". Firefox keeps loading but shows a blank page. Actually I found I cannot open PDFs by Firefox first, and then I found I cannot open any directory. I think these two issues are related.

Does anyone have some idea about this issue? OS: Manjaro Linux Firefox: 80.0.1

Thanks.

Hi, I'm using both Linux and Windows on my computer. I've got problem with firefox sync, on Windows I'm using program like IDM and also use it's extension on Firefox. Meanwhile, on Linux this extension is useless. If I turned it off while on Linux, when I relogin to Windows, this extension also get turned off, I understand this is due to Firefox sync nature, but its so ineffective if I've got to turn it on and off while switching between OS.

Is there any workaround for this?

TIA

I use Firefox Enterprise on both Windows and macOS, this alone is the single reason why I gravitate towards Firefox the most, it might be even my main browser, I really don't know which is since I have at least 2 opened at any given time, normally 3 or 4. The best part of it is that I don't have to set it up, it's all done. I use Firefox Sync just in case I use Firefox somewhere else, like a phone or Linux, or to push a page to another device (really, it's pulling the history bc push has never worked) but I can live without it.

When I use Firefox on Linux though, it's a night and day experience, it feels like I have to setup Firefox from scratch even after logging into Firefox Sync, it's only synced selectively mostly cares about useless stuff or stuff that I wouldn't let the browser save, like passwords, partly (but very little) because of privacy but mostly because I use a ton of browsers, I can't micromanage each. I even disable all of this via policy and that's what I'm looking to do, find how to deploy policies on Linux clients. I assume is just a config file like the preference list on Macs, even if it's not automated it should be easy to make available centrally a pull it on demand and drop it in the right place with some script but I have to find how's it done first and what settings will there be supported, none of that available in the documentation of Firefox Enterprise.

Fedora Server 32 now comes with an easy GUI for 389 DS (not FreeIPA for some reason) and a deployment tool for desktops both as Cockpit modules, which is also the GUI used by Red Hat in a lot of their products, OpenShift for instance. I wonder if I could use this to deploy Firefox settings. It even connects to Active Directory out of the box, if it could only process Windows policies... anyway. Is there some obscure documentation, maybe in beta, that goes over any of this?

Thanks.

I downloaded and installed this package: firefox-81.0.tar.bz2 on Manjaro linux. If I click on Help/about, it updates. Does it update automatically, even if I don't open Help/about?

Ok, thanks, finally human help! I just had to change my pc and make a fresh install of the operating system. I used Linux mint on the last pc, and have Linux MX 18.3 on the new one, currently in use. I took the precaution of copying my Firefox and Thunderbird folders from the old hard drive, as I have several years worth of bookmarks organised in to folders, irreplaceable. This was the way I had preserved that information in previous changes, and swapping the old folders with those in a new install worked fine. But now i find the new version has changed and the files differ and cannot therefore be swapped. I don't really want to get into blaming or how disappointed and annoyed I am, as this won't be the fault of the person helping, and that is appreciated. But back ups need to be backwards compatible or there is no point? So, not sure which version I had, but will have been a couple of years old with updates. In my 'etc' folder there was a Firefox folder, and in that I have a folder marked pref. In that folder there is a file named apturl.js and I have saved those folders. With my new install there is not even a folder for 'firefox' in my 'etc' folder. How do I proceed to restore my bookmarks? If I need to install and older Firefox version I will do so. Many thanks, Tony

Hi,

I have a bit of an odd one. I have Firefox installed and Debian OS. For the last two or three weeks I haven't been able to access netflix.com, returns "Server not found" only on the firefox browser. Trying another browser and I can get to the site without issue. Any other site I firefox can access without issue. Same issue in a Private window. I have two debian PC's, both do the same thing. Any other windows, android phone is ok ( using firefox ).

If I connect to my vpn provider on the problem PC's, firefox can access netflix.

Any help appreciated.

Thanks,

I am using a Linux/Ubuntu computer. I downloaded a program that instructs me to "Open a browser window" to enter certain commands. I am fairly new Linux user and am requesting assistance on how to open a Firefox browser "command" window and enter a Linux command.

Here is the program's URL: https://frontend.bredbandskollen.se/download/README.txt

See Item: --Browser

Thanks for your assistance!

I can't open a Spotify URI from Firefox But I can open it from command line using the --uri option. As in, this works fine from the terminal:

spotify --uri="spotify:artist:6OqhFYFJDnBBHas02HopPT"

and whatever Firefox is doing just launches Spotify without navigating to the thing indicated by the URI

Is there, perchance, a simple file edit I can do that will fix this for me?

In the past I was able to set the setting ``` browser.urlbar.clickSelectsAll browser.urlbar.doubleClickSelectsAll ``` to disable that a single click into the address bar selects the whole url. Is it possible to achieve this with the new QuantumBar somehow?

I would like to use HTTPS to access my router's web interface without having to bypass the "Warning: Potential Security Risk Ahead" page.

Following my router's instructions I exported the certificate. I then accessed the Privacy & Security settings in Preferences, and under View Certificates I imported the router's certificate.

When opening the HTTPS web interface Firefox reports SEC_ERROR_INADEQUATE_KEY_USAGE.

Running 81.0+build2-0ubuntu0.20.04.1 as you can see in the uploaded screenshot images parts of the statistics are not easily seen because they're overwritten. I've uploaded three screenshots, one from Firefox, one from Google Chrome and one from Brave. I've tried adjusting the font size and have checked 'allow pages to chose their own fonts' to no avail.

In my home network there are several servers whose URLs end with ".lan". For example http://nas.lan or http://router.lan. When I want to connect to these machines with Firefox, I usually type router.lan in the address bar. But then Firefox starts searching for router.lan on google. Afterwards I am asked if I had wanted to access http://router.lan instead and when I click "Yes" Firefox takes me where I actually wanted to go. However, this can get quite annoying over time, and I wonder if it is possible to tell Firefox to go directly to the URL I enter whenever it is a string ending with ".lan" and avoid to search for it? Don't get me wrong, I do not want to disable the search bar completely as I am very used to type in searches into the address bar directly.

Earlier it was removed using style in userChrome.css file - " #PopupAutoCompleteRichResult richlistitem:first-of-type[actiontype="visiturl"] ", after update to 78.3 esr version this isn't working. I tried with deleted /home/.mozila folder (new profile) and with menu home ->top sites and search suggestions switched off (and also with and without userChrome.css file) so this is isn't the case. Thanks for help.

Every time I close Firefox and open it again, no logged in accounts are saved. I need to log back in (for google account and so on ...) That happened after I cleared all the cookies from the websites. Before, everything was working fine.

firefox always crash when visiting website with media content (youtube, and w3 html5 video test page) i started firefox with --safe-mode and i got this error - [Child 2113, MediaDecoderStateMachine #1] WARNING: Decoder=ffff5d305c00 Decode error: NS_ERROR_DOM_MEDIA_FATAL_ERR (0x806e0005) - RefPtr<MediaSourceTrackDemuxer::SamplesPromise> mozilla::MediaSourceTrackDemuxer::DoGetSamples(int32_t): manager is detached.: file /home/gitlab-runner/builds/DVuPV_et/0/manjaro-arm/packages/extra/firefox/src/firefox-80.0.1/dom/media/MediaDecoderStateMachine.cpp, line 3470 - then firefox become unresponsive and i have to kill it.