Diễn đàn hỗ trợ Firefox

I have Firefox installed on an XUbuntu 20.04.2 LTS machine. preferences to "restore previous session" on startup. Intermittently, when I launch the browser, one of my windows has a very strange appearance (please note the general look of the window in the attached screenshot and ignore the "page cannot be displayed" message, as the screenshot was taken when I was not connected to the Internet.)

I have already tried reseting Firefox and that does not make the problem go away permanently; it always comes back eventually. (Note: I cleared cache before, and cookies after, taking the screenshot but before opening this support request. So the "troubleshooting information" attached reflects how it is after cookies are cleared.)

When printing a pdf from the built-in pdf viewer (pdf.js?) to a network printer, it's so slow as to be unusable. Save the same pdf and open it it in Xreader, click print, and it starts printing immediately. Size of the document seems to play a role; I knew it was slow from trying to print smaller documents in the past, but today I needed a hard copy of a 68MB pdf, and hours later, it still had not printed.

I'm running latest Linux Mint Debian Edition 4 Debbie and latest Firefox in its repositories, 78.11.0esr (64-bit). Printer is Canon imageRunner 2200, it doesn't have any other slow printing problems, as I stated above.

Problem seems to have existed for a long time...

I'm facing speed differences between Chromium and Firefox. I checked all the hints how to speed up FF, nothing helped. I also de-installed FF complete (linux Mint) and reinstalled with new settings (initially raw system only) but difference between Chromium and FF is still given, FF appr. 130 MBit/s download and 150 upload, Chromium 190 -200 down, same for up. Checked with OOKLA, same server, repeated checks over 5 days. I have a 200MBit/s FTTH connection

When I take a Screenshot within Firefox the Screenshot only contains the upper left quarter of the image. Firefox_Screenshot1.png shows how I take the Screenshot and Firefox_Screenshot2.png shows the result. DE: bspwm

The thread https://support.mozilla.org/en-US/questions/1325905#answer-1429736 was "locked" after I requested help about removing toolbar "fog".

Thank you for your replies.

I wanted to install Firefox in ReactOS and it seemed to be fine. I downloaded the version 48 from the ReactOS Package Manager and at the first start it said: "Update to Firefox 58 is available" and I clicked that totify. Then I pushed the button "Restart Firefox now" and a few seconds later Firefox 58 opened and everything workend fine... At least I thought it was like that: I wanted to log in to my Mozilla account and it opened the log-in page. It didn't load the page correctly but stayed forever on the white screen with the moz://a logo in the bottom left corner of the window and the blue loading circle in the middle. Than I let it sit there and came back about one hour later but nothing had changed. Then I tried to install a newer version manually but when I clicked on the installer *.EXEs ReactOS said "Not a valid Win32 application" or the Firefox installer said "Not compatible with this version of Windows". I really want to use the newest Firefox version on ReactOS (a legal Windows-imitating OS at the technical state of Windows Server 2003) but I couldn't find a way to do so.

Can anyone help me to install Firefox 89 or higher on ReactOS?

Hello,

I am currently using a dark theme in Linux Manjaro, Breeze dark.

If I enable dark theme on Firefox (or any dark theme add-on), the control buttons don't change colors and become barely visible. Otherwise, if I open the "about" window, the control buttons match my theme appropriately. See images for reference.

Tried to reinstall Mozilla, didn't work. Also affects Thunderbirds too. Other apps are fine.

Any help ? :)

Please make extension "MyLOFT" available for mozilla. To access British Library online it is needed.

Google Chrome and Microsoft Edge has extension "MyLOFT" .

I am a regular user of Mozilla Firefox for Windows 10 as well as Linux confidently.

Please make it available ASAP.

Thank you

So,when ever i send tabs from my pc to my device i mostly send it through private browsing mode but if i open it from my device it dosent open in private browsing. Am i doing something wrong?

hello, I don't understand why I can't see the icons of the modules at the right side of the address bar, as it was before. So I can't use the modules, for example to translate smth.

Whenever I open a new page in firefox it automatically loads a page from the recent history in the new window. This is partly annoying because there is a delay waiting for it to load a page you don't want, but is also quite a big problem when it loads a page from the history that was a pop-up with a reduced size, and sometimes with settings that prevent you from changing the page address.

I don't know why it is doing this but it is unusable behaviour. I've tried restarting the computer (and firefox) but it is still doing it. This is version 92.0 for ubuntu.

Hi all,

I am a Linux user (Manjaro) and I've been using Firefox for ages now. I got hold of another computer recently, and I just installed Manjaro Gnome on it as well. I started Firefox, and suddenly I see a UI change, which I don't think is an update, but who knows. In this version of firefox the search bar (along with the new tab, refresh, pocket, etc buttons) are abobe the tab list (which spans the full width). You can see it here https://imgur.com/a/idqp5jb

Moreover, i tried changing themes via the Add-ons Manager and they can't be applied.

When using the Troubleshooting mode, Firefox is back to normal! But in normal mode it is not, so I am not really sure what the problem is. I would be thankful if you could tell me how to fix this.

pourquoi firefox ne me permet pas d effectuer des recherches ? et me reponds que la connection n es pas securisé et/ou chiffrer .. je n ai aucun probleme a ce que ma connection ne soit pas securisé .. aider moi SVP

[Profanity removed by moderator. Please read Mozilla Support rules and guidelines, thanks.]

https://wikileaks.org/podesta-emails/emailid/56753 so on my new machine firefox blocks wikileaks.. WHy?

This is an annoying, but kinda funny, problem. Every time I try getting to a website that starts with "gen", I get this url, gentlemansgazette.com that shows up. I've tried "shift + del", I've removed it from my history. It isn't book marked. It keeps popping up and it's incredibly annoying.

Can someone here tell me how to fix this? It's above "suggestions" so its not a part of that, I don't think. I did include a screenshot but I'm not sure if its going to show.

Thank you!

I've tried editing prefs.js, which made no difference. I've also noticed a prefs sqllite file, but I don't know how to unlock it. What should I do?

I'm on Linux, firefox 95 in case it matters.

Every time i try to log into pocket i get a error message "403". This just started earlier today 1-2-2022. The image upload / attach feature is not working either, it just loops.