for two weeks now, whenever open firefox my laptop freezes affecting all other programs

Have you tried troubleshooting mode, or creating a new profile? The options are generally described in Firefox won't start - find solutions to follow in the various scenarios.

Once you get it running please also submit the crash logs:

1. Enter about:crashes in the Firefox address bar and press Enter. A list of Submitted (and Unsubmitted, if any) Crash Reports will appear, similar to the one shown below.
2. Copy the 5 most recent Submitted Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

bp-d681de84-5269-49ad-b1eb-4b08c0260801

bp-51513041-bbf5-4540-aab2-2d1990260801

bp-c60f8c3f-67f5-419c-ae81-18a7f0260801

bp-97e88c12-db0b-410e-99e0-c94a80260801

bp-f079e9e1-cad0-467f-88a4-3187c0260801

This is puzzling — you seem to have enough resources, yet the system doesn't seem to be able to give the app the memory size requested.

What is interesting in some of these "out–of–memory (small)" crashes is the page size available reported is really small. Not sure why the system is not providing more space.

Does anything change if you start into Troubleshoot Mode, or try a testing clean profile?