Diễn đàn hỗ trợ Firefox

After firefox update to 100.0 - i can't use any of my addons, and cant install new one. All my current updates appears in "disabled" status, and there's no "enable" button. I have many addons, so it's the global problem.

Also, i can't install any of updates from addons.mozilla.org, i get message "Installation aborted because the add-on appears to be corrupt". All addon xpi files are downloaded without problem using "save as", also, after clicking "install" on addons website i see download progress.

Please help to resolve this issue!

Firefox crashes when switching between tabs. Worse than usual crash, the last page i was viewing is there but unresponsive to mouse or keyboard including contr-alt-delete. Must push and hold the power button on my Dell XPS8940. Windows 10 Home 21H2 OS Build 19044.1586. Windows Feature Experience Pack 120.2212.4170.0.

There was a window with 7 tabs, 1 playing a youtube video and 5 with videos not playing, one other site with no audio and another window with a website streaming only audio. When the system stopped, the speakers made an odd sort of buzz sound until powered off. I am on the latest version FF 99.0.1 but a similar crash happened on version 98.0.1. Before that this Dell never locked/crashed up this way.

This Dell PC has Realtek audio just like our HP W10 laptop and they both had issues when new with all sound not working when playing a youtube video only in Firefox (HP Feb 2021 and Dell Oct 2021). Launching Groove Music and playing an mp3 always got the sound working. Problem did not cause any program to crash. Windows updates to drives eventually fixed the problem but it only even happened in Firefox. Current problem is new in the last month or two and only on Dell.

After the latest Firefox update, some of my sites are returning "Network Protocol" Errors. I can log in on other browsers, but Firefox is the one I normally use.

When I start to type a reply to a Facebook post, the page scrolls down so that the line I am typing disappears one line below the bottom of the screen. I have to scroll down to see what I'm typing. Also, it jumps down the same way whenever I hit the backspace key to edit what I'm typing.

I discovered a previous (archived) post on this forum that suggested using "about.config" and making sure that the value setting for browser.backspace_action is equal to 2. But that didn't change the annoying behavior. Is there any other value I should try? It's not clear what the number means.

Nor did setting browser.backspace to true (or to false) seem to help with the unwanted jumping upon use of the backspace key.

This only seems to happen with Facebook, but it's quite annoying.

When I use Firefox on my Mac, no matter what I have tried it keeps defaulting to the dreaded Bing Search Engine. I understand it has to do with Microsoft, but I don't use any of their products because I don't like them. In settings/search I can restore the default search engines & delete Bing, but it always reverts back to insisting on using Bing again. I have followed several threads about this issue without permanent resolution. Help??

There are a number of old threads regarding this and having worked through them it is still unresolved. 1) I have cleared cache/cookies 2) I have disabled all extensions 3) I have turned off tracking 4) I have tried in safe mode - still the same.

This is not just on one website - it is on ALL that have Facebook feeds. It is NOT just on my laptop - I have asked others to try - they have the same result - blank page. ...so please don't suggest re-installing Firefox!!

An example is: https://dragonsdensoftplay.co.uk/News-Events/news-events.html

The feed works ok in other browsers.

Thank you

I opened Firefox as usually, but passwords are missing, only logins are available. There is also a file called logins.json-1.corrupt in the profile folder.

Renaming it back to logins.json with restarting the computer does not work.

There are no previous versions of these two files available in the system.

Please let me know how I can recover passwords, may be with a special software.

Thank you!

I have installed two dictionaries, "English (United Kingdom)", and "French". However, when I go to check a spelling, (right click/Languages over the suspect word), I am offered a third dictionary choice, "English (United States), which I do not want. I have removed the US dictionary and even the language pack but the menu item persists. I can find no way to get rid of it.

Please advise

The latest example is the button to sign into LinkedIn. It is not working in Firefox, but it does in other browsers. I have other examples just from today. I have used firefox as default for many years. I assume this is a security thing, but these are basic links. I have no add-ons or other complications. Most times, I do not even realize there is a problem, but when I feel something is wrong, I try another browser and it works. Thank you.

Hello :) For some time now my firefox doesn't allow me to preview PDFs. If I open it, it gets downloaded at the same time which I don't need. I already tried the thing with renaming the handlers.json to handlersOLD.json but it didn't work :( does anyone know how to fix this?

A routine update from Firefox version 99 to version 100 caused Firefox to quit loading web pages, including the Settings page. Firefox appears to load normally but will not display any web page. The only thing that works consistently is Help/About Firefox. System: Lenovo E495 (AMD Ryzen 5 3500U) running Windows 10 Pro 21H2, build 19044.1706 Symptoms:

• Version 100 and higher work correctly in trouble-shooting (safe) mode
• Refresh does not resolve the problem
• Manually removing extensions (NoScript and Cookie AutoDelete) does not resolve the problem
• Uninstalling Firefox and existing profiles (all Mozilla folders in AppData/*), then making a clean install of version 100 does not resolve the problem
• Removing version 100 and reinstalling version 99.0.1 restores normal operation (repeatable with higher versions)
• Updating from version 99.0.1 to version 100.0.2 or version 101.0 does not resolve the problem
• I have not tried removing any Mozilla registry keys

I use Last Pass for passwords & it's worked in the past on Firefox. After updating Firefox, the Last Pass extension in by toolbar is black - in the past I would click that, open the Last Pass page to sign in, then the icon turns red and functions. Now when I click the icon a frozen page comes up that never loads. I can sign in to the Last Pass webpage, but that doesn't turn on the extension.

Any advice appreciated - thanks!

My images look all glitched out and scrambled. It wasn't like this before, and I don't remember if I changed anything in my about:config.

I've included what they look like.

Hi and thanks for your good app The following website is not loaded in the Mozilla version, but it is easily loaded in EDGE How can I open this site with Mozilla? website : https://app.setareyek.ir/

whenever I search something that (is / sounds like) a product amazon links or other online shopping links show up as the number 1 results after a short delay. I have been redirected to amazon many times when I tried to click the #1 result but the amazon link pops up where the #1 result was.I have uplaoded 2 images the one where steam is the #1 result is what i want it to be, the second Image is what happens after a short delay.