Diễn đàn hỗ trợ Firefox

Scrolling in Firefox is causing any webpage to scroll many lines at once with a single click, and it seems to be exclusively happening to Firefox, as every other application scrolls normally. I have tried searching here and elsewhere for a solution, and I have tried to change about:config settings based on the recommendations I could find to no avail. I have also tried to refresh Firefox and have used Troubleshoot Mode, but those too have not worked. I have no clue as to what could have caused this, as I have not been messing with any settings prior to this.

I have the following settings in Settings/Preferences>General:

Files and Applications

Downloads Save all files in the following folder: Downloads Ticked Ask every time where to save a file

Applications Portable Document Format (PDF): Open in Firefox How should Firefox deal with other files? Ticked Ask whether to open or save files

On specific websites when I click on a pdf link, Firefox opens and automatically saves the file to Downloads folder without asking whether to save and where to save despite the above settings. As far as I remember, on other websites when clicking a pdf link Firefox only opens the corresponding file and doesn't save.

I found this with a internet search https://connect.mozilla.org/t5/discussions/stop-saving-pdfs-to-downloads-when-viewing-in-firefox/td-p/10225.

How can it be disabled that Firefox automatically saves PDFs?

Hello,

I tried opening an .md file with Firefox. It seems that this was a bad idea. Now, my browser keeps opening new tabs indefinitely. I tried rebooting my computer (I am using Ubuntu), I tried removing the handlers.json files from the .modzilla folder in my home directory, but it has no effect: whenever I try to open Firefox this infinite loop goes on right were I left it closing the browser. Please help so I can use it again! Best.

Basically, a requested relaunch blanked my profile and I can't get it back.

I have a lengthy workaround that will take over an hour to fix from backups, before this incident, but I'd really like to understand what's going on. How can my add-ons, bookmarks, history, logins, etc. be gone? If I did a refresh on purpose, why would my shortcuts remain intact? And, I started by backing up my profile folder to a neutral spot, so why isn't replacing it reversing the changes?

As background: The "about:profiles/Restart With Add-ons disabled" button brings up a small button dialogue to choose "refresh" or default "open." I selected "open" because I didn't want to fix my profile and assumed I would relaunch with only add-ons disabled, so this was a potential point of screw-up. I assume selecting "refresh" would reset application defaults and make a mess exactly like I find myself in now. Shouldn't "Restart with Add-ons disabled/Open" relaunch a temporary and reversible state? Doesn't "refresh" prompt a new default profile?

Considering evidence only, it appears I did something to roast my profile before I backed it up, but that's strange and really out in the weeds, and I'm assuming I wrecked it with my current activity.

The default profile name and path are correct. My shortcut links and labels that I use for a home page are intact but with icons missing, the same appearance as if I deleted the cache; is this detail part of application settings and not profile?

Hi all :)

From a fresh Linux Debian Bullseye I try to connect to a local machine with Firefox (v97 64-bits) by its hostname (avahi server with default domain "local") with the port 6180 bound to a remote web service port (61 is the distant machine IP and 80 is the forwarded port).

When I want to open this URL : http://bionic.local:6180/ FF displays "We can't find this site ... Unable to connect to server at bionic.local ... check your network connection and firewall"

BUT ping bionic.local works perfectly and resolve the good IP address from the Chromium navigator the same URL works without a problem, I can open the distant web site.

This workaround works : add a static resolution in the /etc/hosts file : 192.168.0.71 bionic bionic.local => so FF works in the expected way for now ! But as I said this a workaround and a bad solution.

I supposed too the port was blocked because I accessed an unusual port. So I tried this without success.

How the hell make that FF v97 allows me to use an unusual port ? Or is it bound to the domain "local" which is no more accepted by FF ?

Thank you in advance for your help. With adelphity, lnj

How to do

I just reinstalled my operative system, and with that my Firefox settings got reset. I know there is an entry in about:config to prevent ads from opening new tabs and pop ups without authorization, even from legit websites like the login pop-up windows when doing a sign in in Google, in those cases to allow the windows it's needed to click on the lock icon next to the URL bar and allow it from there. The problem is that I don't remember the name of that setting and I have spend an hour looking for it on Google.

Since the Firefox 99 update loading some pages (for example, the Gmail sign-in page) using Firefox on my Linux Mint machine, that I'm running a VNC remote desktop session on, results in a crash.

Crash report ID: bp-5dc1e89d-dc1f-40f2-9dbe-7f4380220419

I've tried running Firefox in safe-mode and the crash doesn't happen, but turning off hardware acceleration, swapping to default themes, removing all extensions, and completely removing Firefox and the .mozilla folder and then re-installing Firefox have not changed the crash behaviour in the absence of the safe-mode flag.

I would appreciate help in identifying what other paths of investigation I can take.

I saw this post https://bugzilla.mozilla.org/show_bug.cgi?id=542690 where it seems implied that it should work, but on LMDE 5 w. firefox 98.0.2 64-bit scrolling horizontally w. touchpad doesn't work for scrolling on pages nor for scrolling the tab list at the top.

On certain websites I notices I have 'unknown errors' when trying to log in.

Usually this is remedied by either using Chrome or clearing cookies and the cache.

Both of there are inconvenient and result in a great deal of wasted time.

The usual response by these websites is "get Mozilla to fix this".

I'm getting sick of this.

I don't want to switch to Chrome but I will have to if this persists.

This was going to be a question about Firefox being unable to display the file picker dialog, but I managed to find a solution that worked for me along the way. Since it was nowhere near the top of Google's results, I thought I'll share my solution in the hopes that this would help someone facing this same issue.

The hardware:

• Asus UM425IA Zenbook (AMD Ryzen 7 4700U CPU)

Worked in:

• Ubuntu 20.04 LTS
• Firefox provided by APT repository
• Xorg display server

Not working in:

• Ubuntu 22.04 LTS
• Firefox 99.0.1 provided by snap
• Wayland display server
• File picker worked briefly on fresh install, but something (not sure what) quickly breaks file picker functionality

The symptoms:

• Firefox stopped being able to open file picker dialogs
• Right clicking an image and selecting "Save Image As..." does nothing
• With forms that accept file upload (such as on this post question page "Add images (optional):"), clicking "Browse" does nothing
• File downloads work correctly when set to "Save files to ..." under Settings, but nothing happens when set to "Always ask you where to save files"
• No response to "Ctrl + O" open file shortcut

Similar questions and solutions:

• Fixed by reinstalling Firefox
• Fixed by resetting Firefox
• Fixed with a restart on a Mac
• Fixed by downgrading to Ubuntu 16.04

Things I tried that did not work:

• Disabling hardware acceleration
• Starting with add-ons disabled
• Troubleshoot mode
• Clearing startup cache
• Clearing cookies and site data
• Clearing history
• Refreshing Firefox
• Creating and using a new profile
• Deleting the `xulstore.json` file from the profile directory
• Toggling all permissions under Ubuntu Settings > Applications > Firefox to off and then back to on
• chmod 777 ~/Downloads
• Disabling native file picker "ui.allow_platform_file_picker = false"

And finally, what fixed it for me was to go into "about:config" and change "widget.use-xdg-desktop-portal.file-picker" from "2" to "0". Credit to this post that clued me in.

I really hope this saves someone else 2 days of hair pulling and I would appreciate advice from someone more knowledgeable than me on:

• Why this fixed the problem
• Whether I should be opening a bug report either against Firefox, or Ubuntu
• Whether I should also be changing "widget.use-xdg-desktop-portal.mime-handler" and "widget.use-xdg-desktop-portal.settings", both are currently set to "2"

As per this issue I reported a while back, I was experiencing odd issue with automatic redirect to HTTPS for some private development sites.

I finally found a fix for the issue. The problem appears to be with DuckDuckGo Privacy Essentials Extension which apparently *may automatically redirect to the http site. In order to prevent this, I added my development sites to 'Unprotected Sites' and this prevented DuckDuckGo from doing the automatic redirect to https.

• - Odd thing is that I had multiple domains pointing to the same web instance and only one of the domains was having this issue with the DDG extension. Both were going to the same IP through a HTTP proxy. The proxy and web server were not the issue. This symptom points to an maybe an issue in Firefox....

In summary, be wary of odd redirects and the DuckDuckGo Privacy Essentials extension if you are doing web development work.

Hi,

is there a config option to prevent the showing of user/pw proposals when opening a website for which user account data is saved? When i'm logging into a website with already saved user data, i get account proposals (as ff saves the data "per domain", say if you have 3 accounts to one website, e.g. a test user, an administrator and a cms administrator, they are all presented where needed content may be...) see pict. I would like to opt out this behavior, as i have more than one website with 2 or more accounts.

-- cu

jth

I was using Ctrl+K on some websites to do things like site-specific search, task bars, and so forth, but recently Firefox started capturing it for focusing on the search/address bar (https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly#w_search).

Is there a way to unbind `Ctrl+K` in Firefox?

The problem is : Some of the time FF just records 0 bytes file and says nothing. I suspect that FF inspect the URL of the links and discard ( perhaps for security reason ) ones that do not begin with HTTP.

The bypass is : One has to copy the link and insert in in the new page of FF.

The solution would be to change FF code.

Thank you.

There is a specific challenge that i am facing with Firefox and some of the solutions that i have tried is not helping me to resolve the issue.

What's the issue: There are double spaces issue in Firefox

Where is it : 1) Menu 1.1) It's in the Menu New Tab is seen to me as New Tab (more spaces are for demonstration only) 1.2) All the Menu items which have space are show with more then one space including

  1.2.1) File Menu -> New   Window (and all the drop down menus with spaces)
  1.2.2) Edit Menu -> Select     All (and all the drop down menus with spaces)
  1.2.3) View-> Page     Style (and all the drop down menus with spaces)
   1.2.4) All the rest of the menus where ever there is a space there is a double space

2) URL : I type something in the URL and they are double spaced "this is test" will look like "this is test"

   THIS URL looks to be double spaced on firefox https://support.mozilla.org/en-US/questions/1338204?page=2
   like below

3) Numbers in the browser :

   Any number displayed is double spaced in the browser output (most of the times, most of the web pages)
   
   

4) Bookmarks : All bookmarks are double spaced

5) Settings:

Settings: I have tried some suggestions below and they did not work for me.

browser.proton.contextmenus.enabled browser.proton.contextmenus.enabled is still set to false but seems to have no effect toolkit.legacyUserProfileCustomizations.stylesheets=true browser.proton.contextmenus.enabled=false

6) Reference: I have tried some suggestions below and they did not work for me.

 https://support.mozilla.org/bm/questions/1350754
 https://support.mozilla.org/en-US/questions/1186601
 https://support.mozilla.org/en-US/questions/1338204?page=2
 https://superuser.com/questions/1654597/firefox-menus-became-double-spaced-in-latest-update-i-want-to-return-to-single

it happens after upgarde to v.100 every click in the link in thunderbird starts only new empty FF window instead of the link content in a new tab This is not on the thunderbird side, as when I set Chromium as default browser the link is opened correctly.

So this issue just started and it's really annoying.

In order to actually see the downloads, I first have to enable the menu bar and then go Tools -> Downloads

Clicking the ↓ button should open a panel of recent downloads but nothing appears when I click on it. Furthermore, the "download complete" notification that this panel provides are no longer present.

The animation for the panel still works though.

Is there a solution to this?

Now on Firefox 100.0.1 On earlier versions of Firefox I was able to set a particular url for my home(opening) page. That is still true. However, on past versions I was also able to make *my home page* appear on every tab I opened. On the current edition I get a choice of only Firefox Home Page (default) or Blank page. I cannot get my home page on the new tab. How can I bypass the restrictions of the settings under Home to get my home page on every tab?

That the question I need an answer to. Everything below this is explanation of why I want this and a complaint about how Firefox changes things that I would appreciate being passed on to the developers.

                                                                    <---------------------->

If I choose Firefox Home Page (default), I am *forced* to use the address box to put in my search terms. I have become accustomed to the various search engines with their splash screens - with the nice big search box in the middle of the screen (both horizontally and vertically). It is absolutely unnerving to me to try to type in the box in the middle and have nothing show up there but up above in the address box.

I am a project person in a multi-tasking world, which means whether I like it or not, I have to multitask too. For me to do this successfully, all my tools need to be where I expect and perform as I expect them. Even putting duckduckgo.com in the current home page/new window setting, doesn't get the duckduckgo splash page, but even though I'm not that technically advanced, I found a way of getting it in my home page window. However, the tabs section doesn't offer me an opportunity to put my own choice in.

I wish Firefox would stop tinkering with otherwise minor things. I understand fixing found vulnerabilities. I understand providing new services and technology when they're developed. But why force people to use search and tabs the way Firefox wants them to rather than the way the user is accustomed to.

I have fedora 36 Linux on my laptop and I have installed Firefox from the software store. The version in Help>About>About Firefox shows 99.0.1 (64-bit).

I am able to play videos on Youtube but no video or GIF is playing on Twitter/Reddit/Facebook.

I have installed media codecs as per this fedora help

My autoplay setting look like as per the attached image. I do not have any extensions except Bitwarden on Firefox.

I also tried playing videos on Firefox 100 by downloading it directly from firefox website but faced the same issue.