What is your question please and be specific with details.

Pkshadow said

What is your question please and be specific with details.

just want to know is it normal that my macbook heting when i use quantum...

Hi, Forum does not work like others, as we are all Volunteers so there is no real public posting it is one on one trouble shooting that may have 5 volunteers try to figure it out.

it is maybe a bit to much for it,

Please follow this in which I hope you can find on your Mac Book.

To be Checked and turned off unless needed for accessibility : Please : go to the Firefox 3 Bar Menu --> Options --> Privacy & Security panel and under Permissions check (put a tick in the box) the setting to Prevent Accessibility Services from accessing your browser.

Multi-Processor Support : Go to the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on.

Only Disable as last resort.

Multi-processor Can completely disable it this way in about:config : dom.ipc.processCount set to 1 browser.tabs.remote.autostart = false browser.tabs.remote.autostart.2 = false

• http://kb.mozillazine.org/About:config

Only move to esr if low ram and old system.

Firefox Extended Release Version : Firefox ESR does not come with the latest features but it has the latest security and stability fixes.

• https://support.mozilla.org/en-US/kb/switch-to-firefox-extended-support-release-esr

If do please :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Please let us know if this solved your issue or if need further assistance.

See also:

• https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

Pkshadow said

Hi, Forum does not work like others, as we are all Volunteers so there is no real public posting it is one on one trouble shooting that may have 5 volunteers try to figure it out. it is maybe a bit to much for it, Please follow this in which I hope you can find on your Mac Book. To be Checked and turned off unless needed for accessibility : Please : go to the Firefox 3 Bar Menu --> Options --> Privacy & Security panel and under Permissions check (put a tick in the box) the setting to Prevent Accessibility Services from accessing your browser. Multi-Processor Support : Go to the 3 Bar Menu then Options --> General --> Performance and untick everything. change the recommended size lower then see how it runs. Note: 1 = No Multiprocessor = slow again. Try 2 Restart Firefox after making these changes please. Note : Hardware Acceleration is for Video Card, Monitor to see if remain off or to turn back on. Only Disable as last resort. Multi-processor Can completely disable it this way in about:config : dom.ipc.processCount set to 1 browser.tabs.remote.autostart = false browser.tabs.remote.autostart.2 = false

• http://kb.mozillazine.org/About:config

Only move to esr if low ram and old system. Firefox Extended Release Version : Firefox ESR does not come with the latest features but it has the latest security and stability fixes.

• https://support.mozilla.org/en-US/kb/switch-to-firefox-extended-support-release-esr

If do please :

• https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
• https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer

Please let us know if this solved your issue or if need further assistance.

all this is just dont work....

SO what happens with this and yes I do know am not using Mac terms, I have misplaced it. So you did everything on that list.

You checked that Prevent Accessibility Services from accessing your browser was Checked ?

You went to Multi-Processor Support : and turned down to 2 and experimented ?

You then then did this : Multi-processor Can completely disable it this way in about:config  ?

You then uninstalled Firefox then installed Firefox Extended Release Version ?

Is that all correct ?

Pkshadow said

SO what happens with this and yes I do know am not using Mac terms, I have misplaced it. So you did everything on that list. You checked that Prevent Accessibility Services from accessing your browser was Checked ? You went to Multi-Processor Support : and turned down to 2 and experimented ? You then then did this : Multi-processor Can completely disable it this way in about:config  ? You then uninstalled Firefox then installed Firefox Extended Release Version ? Is that all correct ?

yes. i even tryed to use firefox nightly. latest version and it heating up mac too. i guess firefox just to heavy for ultrabooks. sad that company cant fix this.

Seamonkey is light on ram : https://www.seamonkey-project.org/

See also Use Firefox on a Mac with a Retina Display? Use Low Resolution Mode.