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Javascript

How do I pause/halt/stop/freeze javascript on a webpage in Firefox? For example, this page. Using either console / keyboard shortcuts / extensions / plugins?

Asked by kie000 4 days ago

Answered by Amber 4 days ago

  • Solved

Firefox 78 and the webp file extension for images. How do I disable webp?

I'd like it if Firefox would automatically convert webp images to jpg or png files instead of the opposite... stop trying to save png or jpg files as webp... and stop ser… (read more)

I'd like it if Firefox would automatically convert webp images to jpg or png files instead of the opposite... stop trying to save png or jpg files as webp... and stop serving me webp images when it is optional. I understand there are websites that ONLY display webp format images, but I am also aware that jpg and png files exist on many of these websites as well. I do not want to disable the ability to display webp in the browser, but I want to turn off whatever option is currently turned on.

I'd like to go back to being able to right click, Save Image As > and end up saving a png or jpg. There have been several websites over the last few weeks that I have visited, and even if the image in the URL is named jpg or png, Firefox tries to save it as a webp. This is complicating my image saving process. I am using the Add-on named "Save webP as PNG or JPEG" which works, but slows down my saving process considerably. The Add-on does not remember the last folder I saved an image to, and adds several additional clicks to what used to be a simple process.

Is there a way in about:config to prevent Firefox from putting webp as the default file format in the Save Image As dialog box?

Suggesting that I use Internet Explorer or Edge is crazy. I'm not changing browsers.

You can demo this annoyance by trying to save this image, which is obviously supposed to be a jpg: https://media.entertainmentearth.com/assets/images/7c23e8c9a6014c57aa8f5d3e281b3834lg.jpg

Asked by brandon9 2 weeks ago

Answered by jscher2000 2 weeks ago

  • Solved

Problem if there is a "(" in an url when trying open a tab in cli (-new-tab)

If there is a "(" in an url when trying open a tab in cli (-new-tab) I get the answer: bash: syntax error near unexpected token `(' Example: try 'firefox -new-tab https:/… (read more)

If there is a "(" in an url when trying open a tab in cli (-new-tab) I get the answer: bash: syntax error near unexpected token `('

Example: try 'firefox -new-tab https://en.wikipedia.org/wiki/Bernicia_(disambiguation)'

Any idea?

Asked by lz 2 weeks ago

Answered by jscher2000 2 weeks ago

  • Solved

Change color of blank page before renderization

I spend 12+ hours a day in front of a computer and blank pages hurt my eyes. I use dark mode wherever possible. I've changed the background color of about:blank already a… (read more)

I spend 12+ hours a day in front of a computer and blank pages hurt my eyes. I use dark mode wherever possible.

I've changed the background color of about:blank already and it works as I expected.

However, when a request is fired to load a web page, there's a quick transition which may paint the canvas totally blank before starting rendering the requested page. Since this transition may take a couple of seconds sometimes in my environment, the screen flashes blank onto my face, really hurting my eyes used to most of things dark most of the time.

Is there a way to configure the color of this transitioning blank page, please?

Thanks a lot in advance. :-)

Asked by rgomes 2 weeks ago

Answered by rgomes 2 weeks ago

  • Solved

CSS: control an icon added to context-menu by an extension

toolbarbutton[id*="8883111b-4bc8-4a99-b37f-5672f6cf9834"] Controls an icon added to the toolbar. What's the syntax for controlling an icon added to the context-menu by an… (read more)

toolbarbutton[id*="8883111b-4bc8-4a99-b37f-5672f6cf9834"]

Controls an icon added to the toolbar.

What's the syntax for controlling an icon added to the context-menu by an extension?

Example: https://addons.mozilla.org/en-US/firefox/addon/simple-search-google-for/

(It does not have an ID in manifest.json but *I can add it*).

Thank you.

Asked by Yaron 2 weeks ago

Answered by Yaron 2 weeks ago

  • Solved

run two or more instances of firefox at same time

Hello. How can i run multiple instances of firefox at the same time? I read this article https://support.mozilla.org/bm/questions/1155401 but it looks outdated because th… (read more)

Hello. How can i run multiple instances of firefox at the same time? I read this article https://support.mozilla.org/bm/questions/1155401 but it looks outdated because this doesnt work for. I tried PS D:\Program Files\PortableApps\PortableApps\FirefoxPortableESR> .\FirefoxPortable.exe -ProfileManager PS D:\Program Files\PortableApps\PortableApps\FirefoxPortableESR> .\FirefoxPortable.exe -no-remote PS D:\Program Files\PortableApps\PortableApps\FirefoxPortableESR> .\FirefoxPortable.exe -no-remote -ProfileManager I use firefox 78 as main instance and i wanna use esr as other instances. Thanks.

Asked by tomasiche 2 weeks ago

Answered by the-edmeister 2 weeks ago

  • Solved

Does FF have a horizontal left-right scroll key or key combo for really wide pages?

Hi All some pages like this one are wide enough to have a horizontal left/right scroll bar. https://trello.com/b/3OtE8BCR/brizy-wordpress-public-roadmap If I'm lucky, w… (read more)

Hi All

some pages like this one are wide enough to have a horizontal left/right scroll bar.

https://trello.com/b/3OtE8BCR/brizy-wordpress-public-roadmap

If I'm lucky, when I want scroll left or right, the cursor is on a piece of HTML where it can move when I use the left or right arrow keys. However often, the cursor isn't available or the right place.

Is there a key or key combo where I can shift the web page left or right in the FF window? I often find it difficult to use the horizontal scrollbar with the mouse.

Asked by Adam H. 3 weeks ago

Answered by the-edmeister 3 weeks ago

  • Solved

Selecting specific search results in google

Mission is to select some of my google search results (links) in order to copy their urls using Firefox add-on Copy Selected links. It use to work that by pressing Ctrl I… (read more)

Mission is to select some of my google search results (links) in order to copy their urls using Firefox add-on Copy Selected links. It use to work that by pressing Ctrl I could select with mouse left button different links in search results but now it is selecting all previous links as well and I cannot have a control over the selections. I want only some of the links in google not all. Are you able to help me?

Asked by erik27 4 months ago

Answered by jscher2000 4 months ago

  • Solved

Looking for a way / extension to play facebook videos by default in 360p.

I'm using Firefox Beta on a slow laptop in Linux -so, manually changing videos to 360p from the cog works to make them play smoothly. The facebook SD Only setting in http… (read more)

I'm using Firefox Beta on a slow laptop in Linux -so, manually changing videos to 360p from the cog works to make them play smoothly. The facebook SD Only setting in https://www.facebook.com/settings?tab=videos doesn't really work -only in a few videos. If anyone knows of an extension that handles this on latest Firefox Beta let me know. Thank you.

Asked by csts 1 month ago

Answered by csts 3 weeks ago

  • Solved

Is there a correct way to close Firefox from a .bat file

Hi, I am on windows 10/FF 78.01 and I have a batch file that on closure saves many things to another disk. Recently I added the saving of my Firefox profiles folder. I ha… (read more)

Hi,

I am on windows 10/FF 78.01 and I have a batch file that on closure saves many things to another disk. Recently I added the saving of my Firefox profiles folder. I had read that when exporting/saving this folder one should ensure that Firefox is closed. Is there a tidy way of closing Firefox in my .bat script?

Currently I am using the cmd taskkill /F /IM firefox.exe but I notice that when I reload Firefox it restarts pretty well exactly where it left off rather than starting with my standard set of tabs as defined in my option 'Use current pages'. It's not a big deal but it would nice to know if there is a correct way to close FF that gives the same restart result as when I do a manual hit 'x' /Close n tabs. Thank you


edited to correct the leading lines spaces, to allow content to wrap properly

Asked by oldchap47 4 weeks ago

Answered by oldchap47 4 weeks ago

  • Solved

Alternate Stylesheets in local HTML file?

It seems that Firefox on Win10 does not present alternate stylesheets in local files. See for example: https://www.w3.org/Style/Examples/007/alternatives I have a trivial… (read more)

It seems that Firefox on Win10 does not present alternate stylesheets in local files.

See for example: https://www.w3.org/Style/Examples/007/alternatives

I have a trivial HTML file, e.g., c:\alternate_stylesheet.html, with a few of those examples of alternative stylesheets, like:

 <link rel="alternate stylesheet"
       type="text/css"
       href="http://www.w3.org/StyleSheets/Core/Steely" title=Steely>
 <link rel="alternate stylesheet"
       type="text/css"
       href="http://dbaron.org/style/forest" title="Forest (by David Baron)">

Viewing such a trivial HTML page in Firefox on Win10, the View > Page Style list is the default - just "No Style" and "Basic Page Style". The list does not include the head link alternate stylesheet options.

Why not?

IE has no trouble with these (menu View > Style presents them as expected), which seems to confirm that the trivial HTML code is correct.

Any advice?

Asked by Dante 1 month ago

Answered by jscher2000 1 month ago

  • Solved

How to remove pre-installed command line bookmarks like: facebook, twitter, reddit, etc.?

Greetings forum - I have Firefox on automatic update. Last night Firefox auto updated to version 78.0.1 and this update added pre-installed bookmarks suggestions that ap… (read more)

Greetings forum -

I have Firefox on automatic update. Last night Firefox auto updated to version 78.0.1 and this update added pre-installed bookmarks suggestions that appear when I click the command line.

These pre-installed bookmarks suggestions are offensive trash like: facebook, twitter, reddit, etc.

I have searched the help section. I have scoured the customize pull down menus. I have looked through the bookmark editor ... and found no clear method of removing these pre-installed bookmarks suggestions.

There MUST be a way to do so. I CAN NOT see facebook, twitter, and reddit in my bookmarks every time I click on the command line.

Does anyone know of a method to remove these pre-installed bookmarks suggestions?

Thanks in advance for your time and knowledge.

Asked by johndaversa 1 month ago

Answered by jscher2000 1 month ago

  • Solved

Is it possible to style the built in pdf.js viewer using CSS/modify in general?

A lot of firefox is customizable via userchrome or extensions, however one thing that does not seem to be is the default PDF.js viewer. I would like to continue using it;… (read more)

A lot of firefox is customizable via userchrome or extensions, however one thing that does not seem to be is the default PDF.js viewer. I would like to continue using it; however, I would like to change the styling on it (specifically I want to change how page breaks are rendered, which I already have the CSS for). Extensions obviously will not work as it is an internal file, userChrome doesn't work (I tried it), and I can't seem to find where the viewer is actually located on my PC (Search Everything brings nothing relevant up for pdfjs, pdf.js, or viewer.html.) Is there any way that I can modify the inbuilt PDF viewer?


PS this is probably unimportant but I noticed that https://mozilla.github.io/pdf.js/web/viewer.html has slightly different CSS from the built in version .

Asked by ev3commander 1 month ago

Answered by Wesley Branton 1 month ago

  • Solved

Tips and suggestions

I decided to use Firefox, but I noticed some things that are missing. 1) Being able to color the favorites folders (at least set white, black or gray) 2) Black or gray ba… (read more)

I decided to use Firefox, but I noticed some things that are missing.

1) Being able to color the favorites folders (at least set white, black or gray)

2) Black or gray background when I open a favorites folder (currently it's white)

3) Layout of folders open folders of favorites that adapt to the length of the name of the favorites

4) Ability to enter a different pin or master password, in order to access the passwords on mozilla firefox (if I leave my pc on, with firefox open, another person can go to the firefox settings and see all my messages in clear password.)

5) Incorrect display of GMail e-mail (a sliding bar appears in the center)

6) Ability to choose whether to scroll or decrease the tabs.

First of all, congratulations to everyone for the work done so far on Mozilla Firefox.

Ps: if you want I can post photos for every single point mentioned above.

Asked by Stefano 1 month ago

Answered by Stefano 1 month ago

  • Solved

Are there any tricks to getting a Chrome URL page as the new tab?

The one and only website that I want as my new tab is a bit laggy and takes a while to load, probably because of CloudFlare. And I'd like to have a huge page to see all o… (read more)

The one and only website that I want as my new tab is a bit laggy and takes a while to load, probably because of CloudFlare.

And I'd like to have a huge page to see all of my bookmarks in, to make it easier to organize my bookmarks. Instead of using the bookmarks sidebar or the Library window.

So I thought why not combine the two things that I want? Make my new tab open up to the Chrome bookmarks page, and then if I want that laggy website it can be one of the top bookmarks listed. Or if I want to organize and see my other bookmarks instead, I can just ignore that top bookmark and focus on the other bookmarks.

Well my New Tab URL won't let me and it is a Firefox restriction so he couldn't add the feature even if he wanted to.

But surely there is a trick or workaround that might not involve extensions?

If so, please let me know.

I want chrome://browser/content/places/bookmarksSidebar.xhtml as my new tab page.

The extension was changing it to http://chrome://browser/content/places/bookmarksSidebar.xhtml which broke it.

Asked by gaveitatry 3 months ago

Answered by gaveitatry 3 months ago

  • Solved

Firefox v77 - Need command to "return to the previous tab"

I need to configure a keyboard command -- or else find an Add-on -- that will "return" -- from the current tab, to the previous tab -- that was displayed in the same Fire… (read more)

I need to configure a keyboard command -- or else find an Add-on -- that will "return" -- from the current tab, to the previous tab -- that was displayed in the same Firefox window.

Years ago there was an Add-on that provided this function -- but it was never updated to work on later Firefox versions... I have looked recently, and found nothing similar -- but does anyone know if there is an Add-on to provide this function, that will work on Firefox v77 ?

If not, then how can we forward the following suggestion to Mozilla?

Similar to Alt-Tab calling the Windows "switch Window" action -- Ctrl-Alt-Tab would (ideally) switch Tabs in Firefox, to display the previously displayed Tab, in the (same) top window.

Thank you,

BillK

Asked by kingsbry 1 month ago

Answered by cor-el 1 month ago