How do I find out if a Firefox add-on is causing "rendering error" on a website I'm trying to log in to

I have been fighting with Xfinity.com for too long now over a "rendering error occurred: invalid time value" message when I log in to their billing function for my accoun… (tuilleadh eolais)

I have been fighting with Xfinity.com for too long now over a "rendering error occurred: invalid time value" message when I log in to their billing function for my account. I am using a Windows 7 PC with whatever Firefox version is the most current.

Among the responses from their "experts," I see something that has to do with "browser add-ons may be causing your problem."

I have looked at my Firefox settings > manage your extensions as well as settings > manage your plug-ins. Under Extensions enabled I have 2: Norton Safe Search and Norton Safe Web. Under Plug-Ins enabled I have OpenH264 Video Codec and Widevine Content Decryption Module. That's all. Could any of these be causing the problem?

Does this "rendering" error have anything to do with Javascript? (I thought Firefox did not support Java so never paid any attention). If it does relate to Javascript, how do I fix my Firefox browser settings to enable it for the Xfinity.com website to see if that fixes anything?

This is so incredibly discouraging.

Asked by smittydm 1 mhí ó shin

Last reply by smittydm 4 lá ó shin

v109.0 cuts of bottom of all my bookmarks toolbar - Win10-64

I love Firefox!!! But .. After I updated I an no longer see the bottom 20% of the text in my All Bookmarks->Bookmarks toolbar where my toolbar only displays the text … (tuilleadh eolais)

I love Firefox!!! But ..

After I updated I an no longer see the bottom 20% of the text in my All Bookmarks->Bookmarks toolbar where my toolbar only displays the text of the drop down name.

It seems to be a recurring issue where new versions really mess up the spacing in the drop down menus of the toolbar mostly (not this time).

My menus are just Perfect now .. although I'd love for the menus shown in the 'manage bookmarks' window to have Exactly the same spacing as the Firefox toolbar menus (the 'manage bookmarks' window has Much larger spacing and is a bit of a pain to use due to this).

Here's my no doubt primitive userChrome.css

menupopup:not(.in-menulist) > menuitem, 
menupopup:not(.in-menulist) > menu {
  padding-block: 3px !important; /* reduce to 3px, 2px, 1px or 0px as needed */ 
  min-height: unset !important; /* v92.0 - for padding below 4px */
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

#placesList treechildren::-moz-tree-cell-text {
  font-size: 11px !important; 
}
#placesList treechildren::-moz-tree-row {
  max-height: 10px !important; 
  padding-bottom: 0px !important;
  margin-bottom: -3px !important
}

Asked by FireFoxCustomWannabe 1 seachtain ó shin

Last reply by FireFoxCustomWannabe 6 lá ó shin

pdf files won't open

When I download a pdf file while using Firefox, the file won't open. They will open if I download them using a different browser. I've scanned for viruses, malware, etc. … (tuilleadh eolais)

When I download a pdf file while using Firefox, the file won't open. They will open if I download them using a different browser. I've scanned for viruses, malware, etc. and nothing is found. I turned off "block popups"

How can I fix this?

Asked by Mike 1 seachtain ó shin

Last reply by Mike 5 lá ó shin

Firefox is causing a black screen

I'm using a new PC with Windows 11. I downloaded Firefox. When browsing in Firefox it has several times caused the whole screen to go black, and the only way to get bac… (tuilleadh eolais)

I'm using a new PC with Windows 11. I downloaded Firefox. When browsing in Firefox it has several times caused the whole screen to go black, and the only way to get back is to turn off and turn on again. Even then the Firefox page sometimes comes up again and I have to be quick to tap the X on top right to shut it down - or the whole screen goes black again! Then when I restart Firefox it re-loads the page, so I have to quickly exit before it happens again. So this morning when it happened I just did a full restart of the PC. Then I transferred all my tabs and other info to Edge, and will use that from now on.

What is new that is causing Firefox to do this?

I imagine I could also use Chrome, haven't tried that yet.

Asked by hcleasby 3 mhí ó shin

Last reply by hcleasby 6 huaire ó shin

Problem with Firefox Browser wont install extensions

I have found out finally how to get logs of my problem and dont know where to go from here. its really been a pain for a long time. not being able to install new extensio… (tuilleadh eolais)

I have found out finally how to get logs of my problem and dont know where to go from here. its really been a pain for a long time. not being able to install new extensions always saying corrupt ended up being able to install them from the user / appdata / roaming / mozilla etc etc / extensions but now thats stopped working .. anyway here are the logs looks like its hanging from not being able to remove the file from staging. any help would be greatly appreciated

1674616476069 addons.xpi ERROR Failed to remove file C:\Users\Kevin\AppData\Roaming\Mozilla\Firefox\Profiles\mnqwub7b.Kevin\extensions\staged\@hoxx-vpn.xpi: [Exception... "Component returned failure code: 0x80520015 (NS_ERROR_FILE_ACCESS_DENIED) [nsIFile.remove]" nsresult: "0x80520015 (NS_ERROR_FILE_ACCESS_DENIED)" location: "JS frame :: resource://gre/modules/addons/XPIInstall.jsm :: recursiveRemove :: line 1013" data: no] Stack trace: recursiveRemove()@resource://gre/modules/addons/XPIInstall.jsm:1013 startInstall()@resource://gre/modules/addons/XPIInstall.jsm:1895

thank you

Kevin

Asked by ozzielad 5 lá ó shin

Last reply by ozzielad 5 lá ó shin

Utilising Firefox (current ver. 78.15.0esr) totry to access Ancestry.com

I use Firefox (78.15.0esr) to access Ancestry.com. I use a MacBookPro 15in (late 2013) fully rammed etc. Also tried the same procedure on another MacBookPro 13in (late 2… (tuilleadh eolais)

I use Firefox (78.15.0esr) to access Ancestry.com. I use a MacBookPro 15in (late 2013) fully rammed etc. Also tried the same procedure on another MacBookPro 13in (late 2015) with same result. Also updated Java to ensure latest version.

Problem 1. Having problems utilising there Messaging system and

Problem 2. Cannot see Graphics (i.e. pictures attached to individual record files [though thumbnail's can be seen]).

What I have done: I approached Ancestry and was sent several generic FAQ URL's (https://support.ancestry.com/s/article/Fixing-Page-or-Button-Problems-on-Ancestry?language=en_US) suggesting clear cache etc. • Have tried all of their 'suggestions' (and on a second computer) with no benefit. Any ideas on what I could do to rectify the issues? • The people assisting don't appear to understand HTML.

Asked by jim.challenor 3 seachtaine ó shin

Last reply by jim.challenor 5 lá ó shin

Overflow Menu - Please Bring Back Functionality Lost in FF 109

As you can see in the attached image of my old Overflow Menu, I had it customized with many buttons/extensions I often accessed throughout each day. With the advent of F… (tuilleadh eolais)

As you can see in the attached image of my old Overflow Menu, I had it customized with many buttons/extensions I often accessed throughout each day.

With the advent of FF ver 109, this functional flexibility has been completely lost. Now, there's no way to choose what buttons and to sort them in the Overflow Menu. In my view, an egregious loss of convenience and efficiency.

Please, bring back the full functionality of the previous Overflow Menu!!!

Asked by Angstromm 3 lá ó shin

Last reply by Angstromm 2 lá ó shin

Password Manager Extension Bug

I have installed Strongbox; however, it will not add to the toolbar in the upper right of the browser where other extensions appear. Clicking on the puzzle piece just ta… (tuilleadh eolais)

I have installed Strongbox; however, it will not add to the toolbar in the upper right of the browser where other extensions appear. Clicking on the puzzle piece just takes me to the page of installed extensions. Even though it indicates it is installed, I find no way to access this password manager.

I use the most current Firefox on Windows 10.

Asked by Reg 2 lá ó shin

Last reply by Reg 2 lá ó shin

toolbar enters overflow menu when watching full screen videos, incl default bar/settings

entire firefox toolbar enters overflow menu thingy when i watch videos in full screen (player full screen not FF/f11 fullscreen), this also happens even when i reset tool… (tuilleadh eolais)

entire firefox toolbar enters overflow menu thingy when i watch videos in full screen (player full screen not FF/f11 fullscreen), this also happens even when i reset toolbar to default, all of it still enters overflow, and i have to press F11 twice to get it "out" this is totally new, (didn't even know there was an overflow thingy), in over a decade of firefox never encountered this seen it, to the point i didnt' realize overflow was a thing, and on a new install i can't seemingly to get it to not keep "eating" my toolbar

this is super annoying, and i would really really like a way to "Lock" my toolbar so this doesn't happen, and i can't imagine it's normal in anyway, specially when it happens on default and a clean install/empty browser, please help get back to normal toolbar "sticky"

Asked by hitmanpro 2 sheachtain ó shin

Last reply by hitmanpro 5 lá ó shin

sync firefox

yesterday my main computer died - I am trying to work with 2 others (newer actually) - I can get firefox to sync on one of them but not on the other I tried to delete fir… (tuilleadh eolais)

yesterday my main computer died - I am trying to work with 2 others (newer actually) - I can get firefox to sync on one of them but not on the other

I tried to delete firefox and put it back on and it still didn't sync

help

Asked by susan_nett 6 lá ó shin

Last reply by susan_nett 5 lá ó shin

Font Courier New is broken in automatic email signatures on Outlook Live website (owa)

For some reason my automatic email signatures in Outlook Live websites (outlook.live.com and owa's) become gibberish (see attached image). I have been having this problem… (tuilleadh eolais)

For some reason my automatic email signatures in Outlook Live websites (outlook.live.com and owa's) become gibberish (see attached image). I have been having this problem for a while now (aka, not only after the last Firefox update), but it is intermittent.

I have already tried identifying whether the issue is in an extension or in Firefox itself, but without success. Whenever I restart Firefox in Troubleshoot mode, it solves the problem. But disabling all extensions and restarting Firefox does not. Restarting Firefox (not in Troubleshoot mode) sometimes solves the issue, as well as right after an update of the app; but not always. Starting Firefox after a computer restart usually brings the problem back. This problem also happens in my laptop (MacBookPro), so it is not restricted to this computer (macMini).

I would appreciate some help in identifying the culprit, so that I may contact the appropriate support team (if not Mozilla itself).

Asked by Tiago Pomella Lobo 1 seachtain ó shin

Last reply by Tiago Pomella Lobo 6 lá ó shin

Firefox keeps moving my toolbar icons into "more tools" - How can I stop this?

Hi folks, Since the last 109.0 update I've noticed a strange behavior with Firefox. Sometimes after watching a video stream in full screen, my toolbar changes and moves a… (tuilleadh eolais)

Hi folks,

Since the last 109.0 update I've noticed a strange behavior with Firefox.

Sometimes after watching a video stream in full screen, my toolbar changes and moves all my customized icons / extensions etc. into this "more tools" drop down menu. I can reproduce this by repeatedly switching from full screen to the normal view

This is so annoying and frustrating.

Does anyone know how I can fix this?

Asked by FallIn1337 1 seachtain ó shin

Last reply by FallIn1337 2 lá ó shin

Linux Firefox and Thunderbird how to set wider scroll bar

In firefox 108.0.2 I need to have a wider vertical scroll bar, the tiny thin bar is next to impossible to use. Same in Thunderbird 102.6.1 both are in Linux and the publi… (tuilleadh eolais)

In firefox 108.0.2 I need to have a wider vertical scroll bar, the tiny thin bar is next to impossible to use. Same in Thunderbird 102.6.1 both are in Linux and the published css solutions (a year ago) on mozilla support do not work for these versions

Asked by Cat22 1 seachtain ó shin

Last reply by Cat22 3 lá ó shin

No "x" button when multiple tabs open

With multiple tabs open, the "X" close button disappears; in Safari, the "X" appears on hovering, not in FF, so I have to open the tab to close it. It's an annoyance … (tuilleadh eolais)

With multiple tabs open, the "X" close button disappears; in Safari, the "X" appears on hovering, not in FF, so I have to open the tab to close it. It's an annoyance

Asked by campsall 4 lá ó shin

Last reply by campsall 2 lá ó shin

Controlling camera in Firefox

Hi there, I have a laptop running Windows 10, plus the latest version of Firefox. The laptop has a built-in webcam. I have also connected an external webcam via USB. This… (tuilleadh eolais)

Hi there,

I have a laptop running Windows 10, plus the latest version of Firefox. The laptop has a built-in webcam. I have also connected an external webcam via USB. This second camera is better quality and preferred, I visit a web site. When I first activate the camera, I am presented with a dropdown of available cameras. The USB camera appears in the list. All is fine. I instruct Firefox to "allow" this camera to be used. (first image) However, after a short time, less than a second, the same dialog is shown again, this time without the USB camera. (second image) There have been no actual hardware changes. I can then click "allow" again and the *integrated* camera works, i.e. not the desired camera. So, two questions, really. First, what just happened? Did Firefox try to control the USB camera, find that it couldn't, and redisplay the dialog showing only the "controllable" option? Second, my desired endpoint here is for the web site to use the USB camera. How do I achieve this? I can easily do this with Chrome but I like Firefox. TIA.

Asked by pete103 4 lá ó shin

Last reply by pete103 3 lá ó shin

Browser Popups

Hello, A few weeks ago something changed in my Firefox browser where popup boxes do not show. For example, if I want to download a file, the pop-up box with the options … (tuilleadh eolais)

Hello,

A few weeks ago something changed in my Firefox browser where popup boxes do not show. For example, if I want to download a file, the pop-up box with the options for downloading do not show. If I want to attach or upload a file, the popup does not show. Even if I want to change a setting in my my Firefox account, I cannot if it requires a popup box.

If I restart my computer (not the browser), the problem goes away, but eventually it happens again.

It is really disruptive. Now I have to do about 60% of my work in another browser. All of my account info, bookmarks, and passwords are saved with my Firefox account, so I would prefer to be able to use Firefox. Any suggestions on how to fix? I should also not--this has persisted despite updating.

Asked by aimc01 1 seachtain ó shin

Last reply by aimc01 3 lá ó shin

Google sourced content often fails to load

For the last few months (perhaps concurrent with a Firefox update, but I don't remember), Firefox seems to be having problems with Google-sourced stuff. It's intermittent… (tuilleadh eolais)

For the last few months (perhaps concurrent with a Firefox update, but I don't remember), Firefox seems to be having problems with Google-sourced stuff. It's intermittent, but the most frequent failures are searches using either the address field or the dedicated search field - much of the time I just get a blank page, and at first it looks like it might be trying to load something, but after awhile the "X" abort icon changes to the reload icon, signaling that it thinks it is loaded or has given up. Success or failure seems to come in waves or phases, not completely random - immediately retrying will usually not work. If I can get to the Google home page by typing "google.com" directly (which has a much better batting average than searching in the address/search fields, although not always), I can search directly on the Google page without trouble for some mysterious reason (perhaps that fills the page using AJAX rather than reloading - I'm not sure). But then clicking on one of the results might not work, because that initially goes to a Google URL before redirecting to the requested page. I've resorted to extracting the page location from that redirection URL just to bypass Google.

Other Google services have problems, too. YouTube's home page usually loads outlines of videos, but sometimes it fails to fill in thumbnails and other details or does so VERY slowly. Occasionally even reCaptcha will fail to load when I'm trying to log into some site that uses it. And even when something appears to fully load and function (e.g. a couple Google Sheets I use daily), often the "stop loading this page" X and hourglass on the tab will remain, indicating that it thinks something is still loading (in that case, it seems to never time out - I either click the X or ignore it). All these types of failures started at the same time, so they seem to have a common cause.

I have not noticed any problems with sources that are not owned by Google. And Chrome and Edge have no problems at all. So apparently it's specifically Firefox and Google that are not getting along. I'm running Firefox 108.0.1 (in PortableApps, although located on my hard drive) on Windows 11.

These failures happen even if I start Firefox in troubleshooting mode (which proves it's not caused by an add-on) or open Google in a private window so that there are no cookies involved. Since Chrome works, I also tried using the User-Agent Switcher add-on to pretend I'm Chrome, but that also has no effect. I expected to see tons of other complaints about this on the web, but there have been surprisingly few, and the only suggestion that seemed relevant (and effective for some people) was to set "security.tls.enable_0rtt_data" to false, but that has not made any noticeable difference in my case.

I waited through a couple Firefox updates, hoping it would just get well, but I've lost patience. Are there any new ideas out there?

Asked by OsakaWebbie 3 seachtaine ó shin

Last reply by OsakaWebbie 5 lá ó shin

Need help reverting to Firefox 108. I can install it no problem, but don't understand how to get all my settings back that 109 removed.

Firefox 109 is horrible and I am trying to revert to 108. I have the "Old Firefox Data" file, but have no idea how to get ALL that info back into 108. I am so very upse… (tuilleadh eolais)

Firefox 109 is horrible and I am trying to revert to 108. I have the "Old Firefox Data" file, but have no idea how to get ALL that info back into 108. I am so very upset and frustrated right now! So much wasted time. I cannot believe Mozilla did this to us with no warning!!!!!!!! I have seen some articles on how to get the info back, but I don't really understand them. I am relatively computer-savvy, but I definitely do not understand how all this works. Some "Firefox for Dummies" at this point would be greatly appreciated. I am on a PC using Windows 10 professional 64-bit with automatic updates so it's current.

Asked by ElegalEyes 3 lá ó shin

Last reply by ElegalEyes 3 lá ó shin