Diễn đàn hỗ trợ Firefox

I'm currently developing a website that use user printer. And I'm looking for a hook that I can use to know user click the confirm or cancel in print dialog(or print preview window). the onafterprint method will trigger before user click confirm so I guess it's not an option.

Also, someone please tell me the topic describes my questions, I really don't know which topic is best for my question.

i'm currently writing my own firefox user.js configuration and now i'm at the topic "unloading inactive tabs" like microsoft edge does.

so what are the preferences for this kind of topic?

i want inactive tabs which have not been used for more than 5 minutes to be unloaded.

chatgpt gave me this "browser.tabs.unloadAfterDelay" preference but this one doesn't even exist in the about:config preferenes, would it still work if it doesn't even exist?

my hardware is very outdated already and i wanna try if my firefox runs better without any hardware acceleration like running fully on software.

i don't think that just simply disabling the hardware acceleration in the settings disables the entire hardware acceleration because there are way more about:config preferences which are related to hardware acceleration.

How to go to the next page on the same website (not tab) but pagination with shortcut keys?

Starting on page 1 I want to go to page 2 on the same website using the keyboard.

Thanks

the preference "browser.contentblocking.category" does still work although it isn't existing in the about:config settings anymore(was removed as it seems) but how and why does it still work?

How do I add a link to the start page that shows when you open a new tab? I've read support docs and I don't have a "pin icon" on my toolbar... I'm on MacOS (M1) and latest (Feb '24) FireFox...... how can it be so non-intuitive? I can't find an option anywhere...

After the last couple of updates Firefox will not wrap words in view source screen(CTRL+U). This makes the info very difficult to read as most lines of code run off the screen. How do fix this? Thanks.

Whenever I open a new tab or window, I'm greeted with the Firefox home screen, which displays various shortcut tiles.

Currently, I have a shortcut for Amazon, which includes a handy blue magnifying glass symbol 🔎 indicating it's a search shortcut and not a shortcut that will take me to an URL. I'm looking to set up similar search shortcuts for YouTube and Google. I've attached an image below for reference.

If anyone is familiar with how to customize these search shortcuts in Firefox, your guidance would be greatly appreciated. Please let me know if you have any tips or steps to follow.

How can I get rid of an automatic fill of websites visited. When I go to the address bar and type in an address, I want to get rid of a website as I have no interest in having that automatically show up on my address web sites. I am using the most up to date Firefox version on a Windows 10 Microsoft Surface Pro computer.

on some websites it says -1 tells Firefox to automatically determine the size of the cache based on your physical disk and setting it to 0 would effectively disable any disk cache entrys.

so are this informations true and if not, how do i still let firefox automatically determine the size of the cache based on my physical disk?

While hovering over a Youtube video it shows the full video title as "hover text" if the tab is focused. However, if something else, even another Firefox window is focused hovering no longer shows anything. Is there some kind of setting to change that? I figured it could be browser and Youtube specific because Chrome shows it on Youtube even when not focused, but neither browser shows it on Google search for example, but I'm not sure.

Hello Firefox Community,

I hope this message finds you well. I am reaching out regarding my website, TheGamesDownload.org, and I am keen to ensure its optimal performance and compatibility with the Firefox browser.

I have noticed "https not valid" when accessing my website through Firefox, and I would appreciate any insights or suggestions on how to address this issue. Additionally, I would like to ensure that my website adheres to best practices for compatibility with Firefox.

If anyone has experience or expertise in troubleshooting compatibility issues or has insights into Firefox-specific optimizations, I would greatly appreciate your input.

Thank you in advance for your time and assistance.

The latest version of Firefox I have keeps making changes to my computer every time I open the program. I have to approve the changes each time, why is the program suddenly doing this? What does it have to change on my hard drive? I don't like programs making changes to my computer when they open they are usually not to my benefit and add clutter to my computer. Please answer, so far no replies to any of my questions!!

Every time I right click and select "Open Link in New Tab" Firefox is not opening this new tab next to the current tab. It instead moves this new tap to the end of all the tabs (of the current website). This is an annoying behavior, I have to go all the way to the end of the tabs to look at the name page that I just opened. How do I fix this behavior?