Firefox Support Forum

VERSION: OS: Ubuntu 20.04.1 LTS OS type: 64-bit Firefox: 83.0 (64-bit) Mozilla Firefox for Ubuntu canonical -1.0

ISSUE: All of the WebAssembly / Wasm error messages I receive in the FF console give a generic response instead of specific messages (like previous versions offered).

I recorded some of the previous error messages in content I was creating for others which explained how to resolve those error messages.

This is an example of what I used to see in the console.

BEFORE:

Firefox 70.0.1 CompileError: wasm validation error: at offset 824: popping value from empty stack

Firefox 80 Uncaught (in promise) CompileError: wasm validation error: at offset 47: initializer expression must reference a global immutable import

Firefox 80 Uncaught (in promise) LinkError: imported Memory with incompatible size

Now, when I do the same things that would trigger those errors, the message I get is vague and not specific at all.

AFTER:

Firefox 83 Uncaught (in promise) Error: undefined

This makes it much more difficult to debug my Wasm in the browser and halts me from sharing my findings with others.

I did look in the about:config settings (in case they added a flag) and tried switching

javascript.options.wasm.verbose from ‘false’ to ‘true’

but that was not a solution.

Setting that flag to true only gave more references to the phases of the compilations but did not give me back the error reporting I used to see for Wasm.

I need to know how to enable the actual error messages again for Wasm or understand why the helpful messages were changed into a generic message. I’m hoping that it just an accident they are not displaying.

I recently changed from Ubuntu Gnome to KDE Plasma. Now, when I'm running Firefox (v83) and click "Save as" to save a file from a web page, Firefox gives me a file list with directories mixed in alphabetically, rather than at the top. This is new behavior to me; I don't know if it's new with v83 (I was previously running v82), or if it's a KDE implementation issue.

Either way, I HATE having to scroll down through page after page of files and folders to find my destination folder. Since the dialog box also incorporates full-row select, I can't even click in the file list and type the first letter of my destination folder.

Please tell me there is a way to change this behavior and have Firefox's "Save as" dialog sort the files with directories at the top!

Thanks.

I use a couple of different browsers, Firefox and Brave. I have several profiles set up in Firefox depending on specific sites or groups of sites that I can open individually or together simultaneously. One of these I set up for a recipe management site I use https://recipesage.com. I set up a profile for recipesage and then go to the site, log in and save that page as the default. I then set up a .desktop script in my ~/.local/share/applications folder (I use Ubuntu as my OS of choice) to open that profile along with an image for recipe sage so I can save the "application" to my launcher separate from the regular Firefox icon. It worked fine that way for years until just recently. it no longer works. I deleted and recreated the profile, open it, set the default page, close firefox and restart it and it just spins, never loads the page. If I set the default to the default firefox page and then go to the site manually it works but not if I save it as the default. I have had to switch to using Brave instead which is fine but kind of sad that I can't use Firefox any longer. Any ideas why it all of a sudden broke?

The ffmpeg wasm library does not work on firefox. I am developing a video editing app using ffmpeg wasm (version 0.9.5). But I am not able to run it in firefox (version 83, Linux Mint 20 Ulyana) Same thing runs perfectly fine in chromium. I googled and the general consensus says firefox does not support latest ffmpeg library features. I have attached a screenshot of browser console.log for clarity on the issue. I checked the browser config and the Shared ArrayBuffer value is set to true.

Hi,

When I try to access:http://cloudhiding.tech/ via Firefox I can check using Wireshark that the connection request being sent is TLSv1.2. How do I force the TLS1.3 connection in Firefox Someone, please let me know.

This website http://cloudhiding.tech/ is hosted behind Cloudflare, and thus supports TLS1.3 (I have verified this using a TLS1.3 client).

I have an embedded system with a HTTP server on it. It doesn't provide HTTPS. When I restart it, the host gets offline from the network for 10 or 20 seconds. When I try to reload the webpage too early (the host isn't quite ready yet), Firefox automatically redirects me to HTTPS. How can I disable HTTPS redirection on timeout?

Some people say "I'm not visiting unknown sites with my browser". I'm not saying that I'm not visiting unknown ones, but still trying avoid sites that I doubt it. But what if I accidentely visit some, VirusTotal showed no viruses. How can I be sure that my browser isn't affected. Should I reinstall it, wipe some folders? I use Linux, Firefox 83.0.

Hello i love mozzila firefox from all the other browsers and i use it only and this is my first time getting problem with browsing online i have firefox 83.0 ( 32 bot ) and i'm working with linux (32 bit) youtube was working fine i think, im not sure that this problem happened after updating firefox i don't know which version of firefox i was using but now im on latest version when i shut down my pc and open it i found that my bookmarks deleted and all the history etc.. now Youtube videos stuttering/lagging and its really annoying problem, thx for your time everyone !

I have switched from Windows 10 to Ubuntu 20.04.1 and am having trouble creating website shortcuts now. With Windows I used the following method

• [Support - Create a desktop shortcut to a website]

From my research it looks this is supposed to work with Ubuntu as well? It is not working for me, is this possible?

Firefox often times out when accessing paypal.com and other sites that use certificates from DigiCert. The same sites can be accessed reliably, from the same computer at the same time, using chromium-based browsers.

The problem goes away if I disable the check to query OCSP responder, which may indicate the cause of the problem.

Often the sites can be accessed after restarting firefox, but after a few tries the problem recurs. This is not a solution as PayPal is often accessed in the last steps of an online purchase.

CentOS Linux finally upgraded FF 68esr to FF 82esr. Of course this had to break something. For years I have had a bookmark to "about:config?filter=signon.rememberSignoabout:config?filter=signon.rememberSignons" This allowed me to easily toggle on or off the prompt for my master password when I browsed a site for which I had stored credentials. This bookmark no longer works. It takes me to the generic about:config page but does not fill in the setting which I am looking for. Is there a way to fix this?

I used to have some sort of addon or other feature which allowed me to only unlock my saved credentials when I wanted to logon to a site. When that broke or went away I found the about:config setting and created a bookmark to it. Being prompted to unlock my stored credentials every time I hit a site for which I have credentials is very annoying. Leaving my credentials file unlocked is a security concern.

Any advice would be appreciated.

TIA,

Ken

Hi, I have following problem. If i start a meeting, like jitsi, I always be prompt for droidcam as camera but i use another android app. So how to remove that and setting up a new one as webcam. I know i can use my little smartphone but, for talking is it enough, but i have to typ words too and this is much more easy an the old laptop. So how can i remove the previous cam, remove it from the cache or what ever it is called, and add a new one without out buying an usb-cam!

greetings hendrik

Firefox refused my written password and I needed to reset it. Now I have no bookmarks, add-ons, logins, etc.

I'm very disappointed it would do this. I've donated to the Firefox project in the past.

Any help would be greatly appreciated!

I'm used to using firefox in OSX but I've got some task that I have to complete on a Linux machine. I was wondering if there a way to adjust the bindings for the shortkeys so they resemble the key bindings in OSX?

Noticed on the latest release of Firefox after I press quit(I have multiple windows) the process will not fully close; I've confirmed this on both Windows and Ubuntu versions. It seems to happen when I have videos playing while closing as they will continue to play in the background.

Only way to fully close the app is to stop the running background process; the videos cannot be stopped as they are CCTV streams.

I'm not familiar with logging with FF if someone can advise on which ones would be of interest I can provide them.

Hi Everyone,

I cannot access my Firefox account created with 1 of 2 email addresses I use, I'll call this emailA, and do not have Firefox in an Authenticator app nor can I find the recovery code. The account did have a secondary email address listed. I'll call this emailB. EmailB also gets all alerts when there are changes to the EmailA firefox account such as new system logins and password changes.

Given that emailb gets notifications regarding the account is there a way for me to gain access to the account with emailA as the primary address using emailB?

Failing that, is there support who I can contact to have the account under emailA deleted?

Regards,

Chris

When I try to dowload a file, i fails and create a 0 byte file. I tried with repository firefox, and download the tar.gz from dev version. Both fail. I deleted ~/.mozilla and ~/.cache/mozilla to start fresh and the error persist. I can browse, open a PDF in integrated viewer, but I am unable to save it. Other browsers can download files to ~/Downloads without problems.

Any hint of how to debug (and/or solve) the problem is welcome.

Thanks

I'm unable to access many sites including YouTube, Google and many more, due to the mentioned error dialogue. I have tried clearing the cache, and my laptop is running the correct time and date. Please help me out.