Diễn đàn hỗ trợ Firefox

When i do bookmark on page, its not works. its displayed message like "The bookmarks and history system will not be functional because one of Firefox's files is in use by another application. Some security software can cause this problem.". Please Solve this Problem.

Hello & Thanks ; Win 10 Is there a way to make FF safe for kids . I have written a Kid-Safe-Browser in vb.net 2019 .vb , but it uses IE11 , which has to many limitations . So I am looking at FF . Is there already something in FF for this , or is there already an extension for this . A list of allowable sites , if not in list then can't get there ?

Thanks for your Help...

Hello & Thanks ; I installed 'block site' but cant find any Docs in how to use it , Even on its own site . I am particularly interested in its 'reverse mode' and its login password . Pls , where can I find Docs ? Thanks

I have an older addon that was disabled. it's no longer supported and won't be updated. I'd like to reenable it anyway. I'm well aware of the general "risks" involved and prefer to have use to my tools.

"Download has been disabled due to security or stability issues." The best I can see is that the inclusion of optional search bar changes is the culprit. I'd be more aware however the admin on the report has hidden the comments and the bug-report is a bit lacking.

I would prefer not to turn off all add-on verification unless I absolutely must. But that's the point I've now reached. I'm using FireFox 82.0b3 on MacOS 11 Thanks.

Every day I get a Firefox popup that says, "Firefox cannot download the latest version. Download the latest version and we will help you install it". Sometimes the popup appears immediately after I open my browesr, and sometimes it appears after I've been using the browser for several hours.

I've been doing the daily download and install, but I want to know what's causing this. I'm using a Late 2015 21.5" iMac running macOS Catalina Version 10.15.7. Firefox is Version 82.0b4, set as default browser with automatic updates turned on. I've been running Beta versions of Firefox for >2 years and have not had problems with updates before this. Thanks for any suggestions and solutions!

My question is a blend of these two previous questions:

https://support.mozilla.org/en-US/questions/1303566 https://support.mozilla.org/en-US/questions/1277388

I have a bunch of open tabs which used to simply contain pdf documents, opened in the Firefor pdf viewer, with the file URL in the address bar rather than a local temp dir address. This behaviour however changed with a recent update (I'm on 82.0b5), and now when I reload those old tabs, I get prompted for a download, and a new tab is opened following the download with a local temp dir replacing the URL. As all these files previously opened just fine in the FF preview with the URL present, this is unlikely to be related to whether the server sends files as "application/pdf" or otherwise, as the same files have changed behaviour, and it is unlikely that a bunch of servers changed the way they send files at the same time.

Further, the answer to the second question above proposed to select "Preview in Firefox" to get around this, however this option doesn't seem to exist anymore.

Is this a known behaviour change in FF82? If so, is there a way to get the old behaviour back?

Hi all,

Currently on the latest beta on macOS Big Sur v11 beta (20A5364e).

Crashing of tabs has at least been resolved since previous versions but I am having an endless usability issue. I can have 2-5+ tabs open and clicking on the tab itself appears dead/unresponsive. Clicking a few more times (in different areas of the tab) or selecting another tab then switching back results in the tab being selected/usable/active again.

I am unable to find any common way to replicate this or reason for it - the sites in the tabs are always very much different. It's not the web site that becomes unresponsive as even when opening multiple 'new' tabs, the same issue can occur without even loading a site.

Detailed version info included.

Hi, I am using Firefox Developer Edition and I am always using DevTools. While I was working, box model disappeared. Can anyone help me?

Basically what i want to say is,

In this video feature name called Box Model disappeared. [Mozilla Org]

Hello, I am new to firefox. so, when i install an addons they doesnt show up in the toolbar. how can i add those addons to the toolbar. this might be a silly question but please do help me.

I currently have Firefox in Bengali. I can't do it in English. '''''''How do I do this in English?'''''''

Please,help me.

Just updated to 82.0 and all of a sudden I am unable to print legal size. All settings, including both Windows and Firefox shows legal paper size. Firefox prints in letter size only. All other apps/programs print in legal size. Any thoughts on this. Only started this morning after the update. Checked on another computer with Firefox prior to update and it prints legal, then updated that computer's Firefox to 82.0 on windows 10 pro and same issue. Thank you

I downloaded a virus that made my default browser some chinese one and it also pinned all of these tabs to my search bar. They are no where to be found in my browsing history. I have already ran a couple virus scans and removed a crypto mining program that had been installed on my pc. Now i just need help removing the pins.

10/20/20

I clicked on the update button last night - running 81.0, and the update was for 81.0.2. When I went to open the browser all that I got was a line at the top - FF would not open. I backed up the profile, and did a clean install. When I finally got the backed up profile installed, it opened properly once and everything was there. When I opened it again, no book marks, and none of the buttons worked. FF didn't close properly, and I had to use Task Manager to shut down.

I ended up downloading the beta version, and it's worked just fine. The original profile works, so all bookmarks are there.

I see that FF released 82.0 this morning. Is it safe to try to install it, or is the beta version that I installed last night really 82, just hours before it was officially released?

it will literally stop working, no refresh, no navigation, sites fail to load properly sometimes all controls in the ui refuse to respond at all. The fix is always to shut down firefox, then on restart the new update installs and everything is fine. I find this as unacceptable as win 10 deciding it wants to reboot while you're working. This problem seems really intentional on mozilla's part and I the user should determine when I am done using the browser and ready to install an update, not the browser itself.

FireFox 82.0 Exporting bookmarks -- How ? I like to keep a copy on my computer . I do not wish to do a SYNC .

Why do I need to do a SYNC -- I like to keep my info to me and not all over the internet /cloud .