Diễn đàn hỗ trợ Firefox

Hello, I'm using a document management system (SeedDMS for those who know) through Firefox 122.0.1 (64-bit, canonical 1.0, downloaded from packages.ubuntu.com for focal, running on Debian Bookworm, kernel 6.1.0-17-amd64/Debian 6.1.69-1 x86_64, X.Org X Server 1.21.1.7, KDE Plasma 5.27.5, KDE Framework 5.103.0, QT 5.15.8, i7-5820K, GeForce GTX 1070).

Within this document management system pdf.js (v4.0.379) is being used to preview/view PDF Documents. After starting Firefox the PDF view inside the DMS works fine until I suspend (to memory) and resume my machine. Regular HTML-content looks fine but the resumed DMS session shows only blank (all white) Pages inside the PDF view. Changing to a different PDF file doesn't help. The number and size of these pages is presented correctly. I can even select and copy (invisible) text from these blank PDF pages. The problem applies to all PDFs, whether they're single or multi paged, have images inside them (like with PDFs from a scanner) or not, etc. Reloading the page/closing reopening the affected browser window doesn't help, i.e. the problem persists.

I recently found out, that this also applies to PDF files directly opened inside Firefox (which also seems to use pdf.js as a PDF viewer), that is, this is not related to a specific site like my DMS.

The problem always persists until I kill Firefox and start it over.

Pdf.js seems to use a canvas inside a div (see screenshots attached) to draw the visual PDF content and another div to make the text layer selectable/searchable etc. I don't know what's happening to canvases on a system suspend/resume cycle in Firefox on Linux, but I suspect that's where the problem originates from.

This problem already affected older versions of Firefox and pdf.js.

Please let me know, if you need further information from my side to investigate that issue.

Thanks a lot!

After facebook messenger upgraded their security chat with end to end encryption call/video is not possible in firefox. Call/video buttons even disappeared. However i can call from microsoft edge web browser for example. Is this some kind of bug with mozilla? Anyone have experienced this too?

I must have pressed a shortcut to make this happen (Firefox zoom is default 100%), video is small and on the left, you can see that the progress bar is the same size as the video.

Thanks in advance :)

Hi,

What is the area above toolbox called (Firefox, File, Edit, View, History, Bookmarks, Tools, Window, Help) and how do I change color on just that?

Thank You, Leslie

I have Firefox as my default browser instead of Microsoft Edge on my HP laptop. I've tried everything under the sun to make Google my default search engine over Microsoft Bing, and no matter what it won't stop rerouting me to Bing. I can go to www.google.com and type directly in the search bar and it STILL reroutes me to Bing, even when my settings list Google as my default search engine of the search bar. Can I block Bing as a website altogether? HP support only offered to connect me with a specialized team that costs money. Please help.

When I scroll up or down on the touchpad in firefox, it is like I scroll past a certain threshold, and it then sends a "scroll up" or "scroll down" command.

When I do this is Chromium, it's like I'm moving the website with my fingers. Similar to how it would be on a touch screen. In other browsers, the scrolling is not discrete, but continuous.

I love firefox, but this is driving me mad when I'm browsing. Is there any fix for this?

Starting with Firefox version 120, you can set Firefox to automatically launch whenever you start or restart your Windows computer. https://support.mozilla.org/en-US/kb/open-firefox-automatically-when-you-start-computer

The browser shows opt-in prompt for the user to easily setup this behavior. However, I do not want to do this.

When I click "No thanks", the prompt goes away, but couple days later, it returns. I guess that an update resets the prompt status.

Is there a way to permanently disable this opt-in prompt without allowing Firefox to start automatically with the computer?

I have the HTTP_PROXY, HTTPS_PROXY and FTP_PROXY (and their lowercase counterparts) exported and then the firefox binary is started from the shell script. The settings in firefox say it will 'Use system proxy settings'. Nevertheless I do not see the proxy being used as I can not access the web pages that need the proxy. The 'about:config' also does not show that firefox picked up any proxy related information from the shell environment.

I know the proxy address is correct because if I use brave browser instead of firefox (same shell script that launches brave) I can reach the web pages behind the proxy as expected.

As the title states. At least half the time when you try right-click and use the "Copy" function, the option is greyed out. If you try to Ctrl+Shift+C, it opens dev tools! This happens on multiple systems that I have that are based on Debian/Ubuntu. So basically, copy functionality is broken for Firefox Linux users...

After an update yesterday, I found out the password manager integrated in Firefox was completely empty. I tried to rename logins.json.corrupt into logins.json, I tried deactivating all the plugins and I also tried copying the file into a new Firefox profile but it got corrupted right away again. If I put in an old logins.json it works but unfortunately it's a saved file from about 3 years ago.... Any idea about how I could get my passwords back? How to "uncorrupt" the logins.json?

Thank you in advance.

When you switch the language in a text field, the focus on that text field is lost and the focus goes to another browser tab. This only happens if at this time a video is playing in mozilla in picture in picture mode with the Always on top option enabled. How to fix it? (Ubuntu 22.04)

I have updated to the latest version of Firefox browser this time. Whenever I create a new tab, the page will prompt me with a failure to load content and hope me to try refreshing to resolve it, but it does not work

Firefox will not allow my to post comments on Yahoo. I have no issues with Chrome or Safari. I get the following error message: Your comment failed to publish. Retry

Hi. I'm trying to transfer Firefox bookmarks from a hard drive pulled from a now dead iMac (was IOS 10.13.4 + Firefox 116.6.0) to a MacBookPro laptop running BigSur (11.6.8) and Firefox 122.0.1. I have the iMac HDD plugged into a hot swap docking station. A search for places.sqlite on the old HD turns up nothing.

I have found answers for drilling down into Windows to find the appropriate files to transfer, but not for Mac. I didn't know Firefox Sync existed until now, and I don't know where to look for a profile on the hard drive. Suggestions?

Edit:

Ok, this is going to be a bigger problem that I thought. The laptop is my wife's old university-owned mac, and there's a whole "admin" layer of hidden and mixed-up folders. I need to go see the admins for help.

Thanks a lot anyway, though. I did learn a lot in the process :)

I keep getting a 404 error for a website even after clearing data and cache. I can access the website on other web browsers like chrome and on my cellphone but not firefox

Currently, there appears to be only one option to tell Firefox to open a given site in a specific container; that is, from the URL bar, to the right.

Would it make sense to have this configuration option presented in "edit bookmark" and/or in a right-click pulldown menu "Always open in this container"?

So, i transferred to my new PC I had a recovery key, and about a lifetime worth of passwords on my account. I exactly followed these steps:

Reset your password with your account recovery key

If you forgot your password and need to reset it, follow these steps.

   Click the Forgot your password? link on the sign-in page.
   Check your email and click the password reset link in it.
   Enter your account recovery key.
   Create a new password.
   Create a new account recovery key. 

Now, my recovery key became my new password and my account is blank. Great. Have a good time!