Diễn đàn hỗ trợ Firefox

Every few hours, maybe 4 times a day, XULRunner appears and tabs me out of everything. It says "This profile was last used with a newer version of this application. Please create a new profile."

There isn't a 'create new profile' button. I already made a new profile as well, but it did not fix the problem.

I recently changed to the newest ESR, 115.10.0esr, to fix streaming issues.

The 'add "outlook.live.com" as an application for mailto links' keeps popping up continuously after I click to X to delete the banner message. How do I disable it? Firefox should have a "don't remind me again" option. I do not want to add mailto links or make any changes. Thank You!

For years, I have used print to pdf in Firefox to generate pdf files of long web pages. It always worked. But lately, I noticed that huge numbers of blank pages are inserted in the pdf file, seemingly at random. I looked at the HTML source, and could not see anything that obviously triggers the blank pages. For example, a web page that ought to print to about 35 pages generates a file of more than 600 pages, with most of them blank.

I can use Microsoft Edge as an alternative, but pdf files from that browser strip out all the color, and are nevertheless super huge, about ten times larger than the ones from Firefox. E.g. the file mentioned above, about 35 pages, would be about 1.3 MB from firefox, and 12 MB from Edge. So getting the file from Firefox would be nice.

Is there a reason why print to pdf is behaving in this strange way, and anything I can do about it?

In recent weeks a PopUp is appearing on my Outlook.live.com Hotmail screen: "Add Outlook.live.com as an application for mailto links? There is no choice to Decline only to Add it. You can Close the link with the X but it keeps returning each time I log in.

We are cautioned repeatedly not to click on unknown links so I haven't.

Could someone please explain in "layman terms" why I am getting this, what it's for and how to stop it?

Thank you to everyone.

Basically, I copied this from an old post that I didn't understand the solution when I move my mouse to the top of the screen in fullscreen, the adressbar and tabs come up, I hate that how do I fix it

Every time I open a new tab, another extra tab opens automatically with the following address: https://0.0.0.1/

showing this message: An error occurred during a connection to 0.0.0.1.

I already re-installed Firefox but this bug keems popping up.

BTW: I did not do a d*** thing. It just started yesterday and is extremely annoying!

I had issues login to my Firefox account, so I reset my password, which cleared my data with passwords and bookmarks. I later found where I stored my recovery key and wanted to see if I can recover that data again.

Help -> About "Failed to check for updates."

This has been going on for over a week. I have downloaded and applied the installation program multiple times (>3). The problem persists. What is going on, and how do I fix it? Thanks

looks like a problem with Firefox as no problem when using a different browser e.g. Opera. Also cannot log onto Nextdoor.co.uk using Facebook to log on. Again works fine on Opera

Any links from rcsearch.ru to aliexpress is broken in firefox, but works in another browsers. For example click any aliexpress link here rcsearch.ru/-c48920.

Hi,

Occasionally when downloading files on Firefox, they'll freeze completely (often at the very end.) There is no way to pause or cancel the downloads, except to restart Firefox.

When I attempt to restart Firefox, it closes the browser window. However, when I try to reopen it, I get an error message stating that Firefox is running but not responding. The 'Close Firefox' option does nothing, except make the box pop back up a moment later.

I can't kill the Firefox process in Task Manager or Process Explorer, because it says access is denied. I can't kill it using taskkill in command prompt because it says there is no running instance of the task.

The ONLY thing that seems to help is completely restarting the computer, which is getting frustrating to do several times a day.

I can confirm Firefox is up-to-date. Any tips are appreciated, thank you!

I've been having issues with the websites that I commonly go to no longer appear on the autosuggest list. Websites I haven't gone to for ten years appear when I type in a given sequence rather than more common ones. Website that I go to every day no longer appear.

Multiple websites suggest this sequence:

https://support.mozilla.org/en-US/kb/remove-websites-address-bar-suggestions

I follow the "clear all.." and nothing changes. How can I start anew and have FF re-learn my url history?

After the last update my primary password prompt box is outlined in red. It was never outlined in red before the update. I cannot find any information for this issue. Anyone else experiencing this anomaly (at least it appears to be one since no one has reported it). Thanks

As you can see here, despite me setting custom colors and checking every setting i could find, i can't seem to find what will turn this white color to grey or black,

does anyone know how to fix this?

When I enter text in Firefox 125.0.1 for Netgear's firmware download page at https://www.netgear.com/support/download/ to search for "GS108Ev3" Ethernet Switch, I get no response. It works in Firefox Troubleshoot Mode and works with Chrome Browser.

Firefox decided to remove the total amount of homepage shortcuts. For months, it allowed for 4 rows and 8 columns, with blank "Add Shortcut" shortcuts. This allowed me to organize or split my shortcuts better. This morning, it decided to move all shortcuts together. As per the "Before" and "After" screenshots attached.

Usual disclaimers: Firefox 125.0.1 (64-bit) on Windows 10 No Config edits No extensions currently installed manipulate, affect or otherwise influence shortcuts

Please advise.

Hello, I have problem with firefox. When I try download from facebook page files .docx, .xlsx (Microsoft Office) Firefox automatically download it as PDF and file is broken. I don't know how to repair this. Please help, it is very frustrating.