This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox 27.0.1 on a Mac OS 10.9.2 the button to enable javascript is missing

  • 4 replies
  • 5 have this problem
  • 1 view
  • Last reply by cor-el

pxvernon
pxvernon
more options

I am having a problem with the BBC iPlayer playing in a separate pop-out player. Their support people have asked me to check that javascript running is enabled.

In the Preferences content tab there is no button to enable Javascript, in fact the Preference screen looks nothing like the picture on the support sites.

I have found that other preference items have moved in Mavericks after I upgraded and I would be pleased if you could tell me how to get Firefox working properly again. FYI I have no problem with the pop-out issue with Chrome or Safari

I am having a problem with the BBC iPlayer playing in a separate pop-out player. Their support people have asked me to check that javascript running is enabled. In the Preferences content tab there is no button to enable Javascript, in fact the Preference screen looks nothing like the picture on the support sites. I have found that other preference items have moved in Mavericks after I upgraded and I would be pleased if you could tell me how to get Firefox working properly again. FYI I have no problem with the pop-out issue with Chrome or Safari

All Replies (4)

Moses
Moses
  • Moderator
more options

In Firefox 23, as part of an effort to simplify the Firefox options set and protect users from unintentially damaging their Firefox, the option to disable JavaScript was removed from the Firefox Options window.

However, the option to disable JavaScript was not removed from Firefox entirely. You can still access it from about:config or by installing an add-on.

about:config

  1. In the address bar, type "about:config" (with no quotes), and press Enter.
  2. Click "I'll be careful, I promise"
  3. In the search bar, search for "javascript.enabled" (with no quotes).
  4. Right click the result named "javascript.enabled" and click "Toggle". JavaScript is now disabled.

To Re-enable JavaScript, repeat these steps.

Add-ons

You can alternatively install an add-on that lets you disable JavaScript, such as

  • No-Script (to disable JavaScript on a per page basis, as required)
  • QuickJava (to easily disable and enable JavaScript, automatic loading of images, and other content)
pxvernon
pxvernon Question owner
more options

Thank you for your quick response, much appreciated. I have toggled "javascript.enabled" after clearing the cache.

Now the pop-out player works although it opens muted to begin. I can live with that!

user669794
user669794
more options

Type about:config in URL and enter

  • In the search bar, search for javascript.enabled
  • Double click on the Value to change to TRUE

Also check the Security tab which is in the Java Control panel to make sure that java is enabled .

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

To avoid confusion:

If you use extensions (Firefox/Tools > Add-ons > Extensions) that can block content (e.g. Adblock Plus, NoScript, Flash Block, Ghostery) then make sure that such extensions aren't blocking content.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.

You can inspect and manage the permissions for the domain in the currently selected tab via these steps:

  • Click the "Site Identity Button" (globe/padlock) on the location bar
  • Click "More Information" to open "Tools > Page Info" with the Security tab selected
  • Go to the Permissions tab (Tools > Page Info > Permissions) to check the permissions for the domain in the currently selected tab

You can inspect and manage the permissions for all domains on the about:permissions page.