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.

Why doesn't Firefox 37.0.1 warn when opening more than 15 tabs, like it used to?

soundskinky
soundskinky
more options

Firefox used to (last week!) throw a warning alert when trying to open (with right click) a folder with more than 15 (I think) bookmarks in it. I use this to check progress on dealing with a folder of bookmarks, to see how may I have left.

Today, it just opens 80 or more tabs without questioning. Given that I have a folder with over 4000 bookmarked pages in it, this change is pretty bad -- I don't want to spend an hour doing cmd-W to close tabs before they can start to load and drag my system to its knees and beyond.

Firefox used to (last week!) throw a warning alert when trying to open (with right click) a folder with more than 15 (I think) bookmarks in it. I use this to check progress on dealing with a folder of bookmarks, to see how may I have left. Today, it just opens 80 or more tabs without questioning. Given that I have a folder with over 4000 bookmarked pages in it, this change is pretty bad -- I don't want to spend an hour doing cmd-W to close tabs before they can start to load and drag my system to its knees and beyond.

Chosen solution

Did you check the setting in Firefox > Preferences > Tabs?

  • "Warn me when opening multiple tabs might slow down Firefox"

See also about:config:

  • browser.tabs.maxOpenBeforeWarn
  • browser.tabs.warnOnOpen

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

Read this answer in context 👍 0

All Replies (2)

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

Chosen Solution

Did you check the setting in Firefox > Preferences > Tabs?

  • "Warn me when opening multiple tabs might slow down Firefox"

See also about:config:

  • browser.tabs.maxOpenBeforeWarn
  • browser.tabs.warnOnOpen

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

Modified by cor-el

soundskinky
soundskinky Question owner
more options

Thanks. This seems to have resolved things. Why they would turn that default off, that's another question.

Modified by soundskinky