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what did u do during your recent upgrade ?!! seems you ruined the speed , ,etc

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what did u do during your recent upgrade ?!! seems you ruined the speed , offline mode, etc. how may i switch back to older one (before 08/25/2016 )

what did u do during your recent upgrade ?!! seems you ruined the speed , offline mode, etc. how may i switch back to older one (before 08/25/2016 )

Chosen solution

What version were you using before??

One of the headline changes in Firefox 48 is that some users have a new feature enabled, which separates the browser interface process from the page content process. The performance impact of this can vary a lot between systems, so could you check whether you have this feature turned on? Either:

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, check the row for "Multiprocess Windows" and see whether the number on the left side of the fraction is greater than zero. If so, you are using e10s, and apparently it doesn't perform well on your system...

If you need to turn off e10s, you could try this:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste autos and pause while the list is filtered

(3) Double-click the browser.tabs.remote.autostart preference to switch the value from true to false

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All Replies (8)

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Please describe the problem in more detail.

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options)
key, and then starting Firefox. A small dialog should appear. Click Start In Safe Mode (not Refresh).

Is the problem still there?

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can not start in safe mode. holding shift and starting did not do anything Just the regular firefox

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Was Firefox running at the time? Close Firefox. Wait 30 seconds, then start in Safe Mode.

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it worked but wont stay so . it returns to regular mode after a while even without starting a new page. Do u have any version with the past specs before upgrading.

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Chosen Solution

What version were you using before??

One of the headline changes in Firefox 48 is that some users have a new feature enabled, which separates the browser interface process from the page content process. The performance impact of this can vary a lot between systems, so could you check whether you have this feature turned on? Either:

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, check the row for "Multiprocess Windows" and see whether the number on the left side of the fraction is greater than zero. If so, you are using e10s, and apparently it doesn't perform well on your system...

If you need to turn off e10s, you could try this:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste autos and pause while the list is filtered

(3) Double-click the browser.tabs.remote.autostart preference to switch the value from true to false

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works for now. Its much better. Thanks. happen to have any solution to block ads and scripts ?

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btw the browser.tabs.remote.autostart was already false but there was a

browser.tabs.remote.autostart 1  that i turned it to false
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shawn_pirz said

happen to have any solution to block ads and scripts ?

For blocking ads, you have a lot of choices, but these are popular and widely used:

For scripts, I use NoScript, but it takes a lot of training, in other words, when you visit a site, you'll often find it doesn't work unless you go down the menu of blocked scripts and unblock some of them, then do it again, and for some complex sites, do it again. Unless you are highly paranoid, you might prefer something like uMatrix which allows the scripts from the main site address automatically, so it's a little less work to train. It also has a matrix display that initial is somewhat complicated but lets you control various kinds of content individually.