Diễn đàn hỗ trợ Firefox

Until today it worked fine. But now whenever I try to login to Xfinity I get You don't have permission to access "http://login.xfinity.com/login" on this server. It works fine on Chrome and Edge. I have disabled my add-ons. I have cleared cache, cookies, etc. I have rebooted. I have turned off firewall. I have checked my DNS. I have changed the DNS protection to OFF in Firefox. I have checked my proxy setting (I have no proxy). I have reinstalled Firefox. Etc. Etc. Nothing works. The fact that it works on Chrome and Edge, that it has worked everyday until today gets me confused. I also tried using my mobile phone as a hot spot to make sure it wasn't related to my Internet connection or IP address. Anyone have any ideas?

Hi, after upgrade of ubuntu to 24.04 i got into problems with using Firefox. I it running on x11 with proprietary nvidia driver, no matter of source package (snap or deb from the Firefox repository) and no matter of safe mode the Firefox gets frozen when clicking into any dropdown control in side page, the same happens when trying to open bookmark folder in the bookmarks panel or even the dialog that opens from the star icon in address folder that should add page into the bookmarks. When running on command line, in case of the snap version there are just some warnings of some missing css file, in case of the deb version it does not output anything suspicious. I was even trying to change the UI theme (qt) as well as GTK theme in case it makes any difference, but it did not... Thanks for any help.

I am having trouble pinning any Extensions to my toolbar. When i click on the Extensions icon (puzzle piece), the Extensions menu immediately pops up. My extension (Bitwarden) is set to "Enabled". When I click on the three horizontal dots, however, the only options are 1) Remove, 2) Report, or 3) Manage. There's no option given to pin the extension.

Because of that, the extension basically never opens, and I am unable to use it. Does anyone have any suggestions for me? Thanks in advance.

I am running Firefox 129.0.2 (64-bit) in Windows 11 on a Surface tablet. FWIW, the extension is running fine in Chrome.

I've noticed that after a few months Firefox ESR will go from being one specific version to two different version tracks. Eventually the older track is removed and the newer one is continued until it then splits. Can someone tell me why this happens and is there an easy way to swap over to the current track? I've included an attachment of what i'm talking about.

For years, I've been looking for a way to disable the space bar from acting as a page down button, including trying out scripts to solve it, but please let users disable that shortcut in the about:config page.

https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly

It is difficult for me, since I see that ability to change what the backspace does is available, but there's no option for the space bar. The space bar is something that I often accidentally hit, and it would be of immense relief to me to no longer have that issue of it paging down what I reading. This is my request, and there are others who also feel similarly.

This is my original post. No response at all. Disappointing.

Non functioning Export/Import, upload images

At this point, if I could just get an opinion, a direction you might follow, if this was happening to you

It keeps recurring. This time it took 3 weeks from the time that last post. As I said in the past post, the problem is a corrupted 'sessionstore.jsonlz4 file.

My evidence is that when i ran about:support - Troubleshooting, the problem was still happening.

I just mounted a backup profile, created during the last incident. Works fine. I took the sessionstore.jsonlz4 from that backup and replaced the one in the problem profile.

After doing the replacement, the problematic profile symptoms have disappeared. At least for now, that is.

But now, I have to restore the missing portion of the session (tabs/history) created between the last occurrence and now, because of the replacement of the corrupted sessionstore.jsonlz4 with the backup.

Nobody has offered a way to do this that is not a time consuming ordeal.

What would you do?

Hi,

I cannot use 'Windows Snipping Tool' to screen-capture some information on 'Protected Content' on Mozilla Firefox. Is there a reason for this? Thank you.

I'm using the latest Firefox on Win10, with a fairly powerful laptop (64 gb RAM, intel i7 2.3 GHz chip), and for about a month now, whenever I use it, it uses so much CPU all the time that my laptop is overheating (slight hyperbole, but it's definitely churning the fans a lot, and the area around the keyboard gets hot to the touch). Sometimes it uses up to 45% CPU, and over 20% memory!!! (as reported in the task manager) Usually around 20-25% though. While Chrome, at the same time, is using 0.1%. It's not just when starting up, either, it's continuous during use, until I quit Firefox.

What the h*** is going on?!? I've tried the troubleshooting steps, but it remains crazy regardless of turning off extensions, and I'm just using the default theme. I notice it's mainly when loading images, like on social media.

This is insane. What is happening. Can someone help me?

Why do PDFs come out so small when printing? ie. taking up only about 40% of an A4 sheet? Selecting "fit to page" or "scale" etc in the print dialogue makes no difference. Images: 1. Desired size. 2. Actual printed size. 3. Print dialogue.

With my previous FF installation, it would remember both the width and the last selection in the sidebar after closing and re-opening FF.

I just formatted and reinstalled windows and now FF simply would not remember the last sidebar condition.

I'm using Windows 10 22H2 and FF 130 64-bit.

I posted it on bugzilla too, so any kind of help is appreciated, I am tired of resizing it multiples times a day.

Steps to reproduce--> Add 'Show sidebars' to the toolbar using toolbar customization. After opening the sidebar & then bookmark panel in it, I decreased sidebar's width to the minimum by dragging the border.

Actual results--> After sometimes[opening and closing firefox a few times], sidebar's width resized itself to the default [here I didn't change anything, 'bookmark panel' remain selected]

Expected results--> Width of 'Bookmark panel'[or any other panel] in the sidebar should have remained of the width it was resized manually.

I'm totally fed up with this! I got this particular one trying to go to Amazon via a link from search but it's happening constantly with links from search and from other sites that I'm on. I am on Amazon a lot. I don't know what this behavior is, where it's coming from, why it's happening, or how to stop it. I'm at the point of just uninstalling Firefox because of it. I've tried the common fixes such as clearing cache and cookies as well as all saved data and it still persists. Firefox has been my default browser for a very long time but if this can't be stopped permanently, I'm done with it!

When I scroll down the page on MSN and try to open a link in a new tab the page jumps back to the top. It then opens a link of another article that I never right/left click on. I have my mouse set up to left click to open a new tab. Does not occur on any other sites.

It has been doing this for months now.

Hi. I reallllly don't want to be the person asking the same question that happens every day...but I've tried to do a bit of searching. I could've done a lot more. I had a surprise windows reformat event this morning. Everything is shiny and unmodded. I have never had it open new indow tabs and new windows simultaneously. If I close the window on the toolbar and it closes the tab. I'd blame myself...but the only thing I did was change the font size because I'm nearly blind. Is this a new thing!? I hate it ! I don't want NEW windows, I use firefox for tabs.

this is happening in safe firefox and unsafe firefox. it must be something in the settings but i don't know!! (i've had the worst day at work and having to reformat was unexpected and incredibly frustrating...i just want my computer the way i like it)

Unfortunately using a date type toJSON() result is not accurate. It first apply client timezone and then convert it to json string. In my scenario I am simply read from an API which return a none standard datetime string without its timezone (like "2020-11-21 00:00:00"), Then I try to convert it to a date using new Date("2020-11-21 00:00:00"). Then I use it in another web service but it apply my client timezone when I use JSON.stringify() method (or toJSON()). Does this behaviour is intentionally?

I read the other same question but I am not okay with it. https://support.mozilla.org/en-US/questions/1414380

For a few days now whenever a new tab opens, either by clicking a link in search results or by clicking a link in an email, the cursor jumps to the bottom of the page and I have to scroll to the top of the page. I'm just getting started with Windows 11 on a new computer. What happened to cause this?

I am on MacOS Monterey running Firefox 130.0. Tonight, I restarted my Mac. Upon startup, Firefox offered to restore my session, as always, but it did not restore everything. In fact, I had one window open that had many tabs (some important) and that is gone.

I'm a bit puzzled and I wonder if I've found a bug?