Diễn đàn hỗ trợ Firefox

The Firefox icon on my taskbar has a great big green number 1 plonked on it. It doesn't seem to relate to the number of windows I have open or the processes running. It's there even when Firefox is closed. I thought it might be messages but I can't find those either. Its driving me nuts can you please tell me how to get rid of it? I'm running it in Ubuntu on a laptop.

I'm not very computer savvy but I followed a website a few months ago to edit Firefox so it'd default to dark mode. I think I went in and edited source code? I can't find the instructions anymore but I'd like to revert back to the original setting. How do I do that? I tried to refresh Firefox but it's still coming back with some websites in dark mode and some not. Please advise!

I'm using last release Firefox in a fresh install of Debian 12 with KDE. Trying to personalize colors and get a coherent style, I've installed Firefox Color and it worked fine, except for a few GUI elements.

I solved the scrollbars part with this answer:

https://support.mozilla.org/en-US/questions/1419353

Is there a similar setting for the menus? I mean in Firefox's menu bar or the ones popping over the page. The dropdown of the burguer menu and the bookmarks toolbar do get styled (I will include images showing the difference).

Thank you in advance and to zeroknight for sharing the bit about scrollbars!

Dear Madam or Sir,

since updating to Firefox 99, we are unable to view PDF files in Firefox, because we are unable to select how to handle PDF files in the settings, cf. 1.PNG We don’t have any enterprise policies enabled except for disabling updates, cf. 2.PNG. We tried disabling hardware acceleration, but it did not help, cf. 3.PNG We tried safe mode and an empty user profile, both to no avail.

This problem seems to be irrespective of the user profile because when I roam my user profile to a machine with FF 93 ESR, there is no issue and I can view PDFs in the browser.

Is there any suggestion how to return the built-in PDF viewer?

Thank you very much in advance!

Best regards

Victor

My computer froze opening an pdf file. I had to reboot. When I did I lost my compressed zip folder ? it is not in my content type under applications. How do I add it back ? Help ?

I've set custom fonts through Settings > Fonts > Advanced, but the fonts I have specified are not being used on any websites even if I uncheck the box that says "Allow pages to choose their own fonts, instead of your selections above". For example, I've set the default sans serif to Source Sans 3, but websites use Arial regardless of the settings. The only custom font I've gotten to work is Segoe UI (the UI font on Windows); all other just fall back to Arial. The problem persists even if I disable all extensions/add-ons. I'm also experiencing the problem for non-Latin scripts; I've tried to set the default Bengali font to Noto Sans Bengali, but websites are using Vrinda instead.

I'm running Firefox version 120.0 on Windows 11, any help is greatly appreciated!

This was my fix for scrolling not working when hardware acceleration enabled. Upgraded this software product: X-Mouse Button Control (of Highresolution Enterprises) to latest release 2.20.5

Hello! I have been inspired to customize Firefox to make it look like version "4" from this reddit post!

One of the things that I cannot find is how to get the old Firefox 4 icons. Is there an official site that has them or should I search or the source code of Firefox from version 4?

The Certificate Manager dialog (Settings -> Privacy & Security -> View Certificates...) has gotten to the point where it is extremely wide (greater than one screen width! Luckily I have 2 monitors so I can expand the FF window wide enough to get to the grab handle in the lower-right corner of the dialog). If I grab that resize handle in the lower-right corner of the dialog and attempt to shrink it, it will not get any smaller - I can only make it bigger. (What has caused this problem is I have attempted to reduce column sizes in the dialog, but the columns have only gotten wider!) I see no controls to be able to reduce the dialog size to a reasonable width. Am I stuck with this forever now?

I have Firefox installed on two PCs. I see the option to add "Recommended by Pocket" under Settings/Home, but on the other one I don't. Screen shots of both are attached. I have completely uninstalled, cleaned up all Firefox files and re-installed Firefox multiple times on the PC where I don't see the Pocket option but nothing changes. Also gone into about:config and tried making changes from there. I want the Pocket recommendations to show on the Firefox Home page for both PCs.

Thanks

I got help with this from your group some weeks ago, but I had to reinstall my Ubuntu OS (linux v.20.04.4 -- using firefox) recently and can't recall the answer.

When I view a WikiSpecies list of file names (e. g., see https://species.wikimedia.org/wiki/Pentatominae), the instances which have been installed but never used should be in a different (reddish) color. I am attaching an image of a page containing a file named "Abadia" (first one on the left, just under "A") which is unused. I also am attaching an empty "Creating Abadia" which is the result of clicking on "Abadia".

Please tell me how to change the image of an unused, empty file. I recall that there were two different choices SOMEWHERE in the system, "Always" and "Never" I think: One of them forces a system-level color pattern which includes reddish unused items; the other allows the used to program arbitrary displays such as the above (typical example from the dconf editor is 'bg_color: #f0f1f2; selected_bg_color: #023C88', but this editor does not change the appearance of a file instance.

Hi, I would like to customize the apps that firefox shows me when I click the address bar. In the attached image, you see youtube, google, reddit, wikipedia, twitter. I would like to remove some of these apps. How can I do that?

Also, there are suggested search engines on the bottom, including amazon, bing, ebay. How can I customize the apps which appear in that list? Again, I want to remove some of these apps.

Thanks.

All my menu texts are so TINY now, that I can't read them, but the browser page is SO WIDE that I can't ever see a whole page and I have to scroll from side to side to read things, which is a ROYAL PAIN as I miss seeing a lot of things. No one can seem to help. I tried the limited percentage things, 67% used to work but now that is too big and when I go smaller I can't read ANY of the text, it is TOO TINY! I can't do my work! The screen shot won't paste on here.