Try to follow this guide: https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help?esab=a&s=crash+&r=3&as=s

I've tried all those things, but didn't help...

Can you suggest anything specific?

hello, in order to suggest anything specific we'd need a few of your latest crash report IDs - please enter about:crashes into the location bar, copy the latest few report ids from there & paste them here into a forum reply. this will give us a better understanding what may be triggering those crashes.

Try with safe-mode: https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode?esab=a&s=open+safe+mode&r=1&as=s

Thanks Philip

Here's reports, thanks if we can solve this

Report ID

       Date Submitted
     
   ad31c09f-60f0-43ee-9024-e4bc9ed689cb          9/23/20138:52 AM

others below

   ad31c09f-60f0-43ee-9024-e4bc9ed689cb  9/23/20138:52 AMbp-564d96c6-713a-4e7b-999d-a345d2130923  9/23/20138:49 AMf15d244e-0d5a-44aa-8449-de8eb35d152a  9/23/20138:47 AMbp-790c099f-2a84-441a-b490-0bcc92130922  9/22/20137:17 PMbp-195ff1b4-b65b-4cd9-af5a-42e9d2130922  9/22/20135:38 PM37966e75-2352-4464-bd26-cb483d3c0989  9/22/20135:34 PMecaa08a4-767e-47f1-9602-a56b16e6a76e  9/22/20135:20 PMbp-09ccc1d3-a004-4dae-8dfe-896c721309229/22/201311:54 AMc7fe7865-bb59-4894-ab6c-c13b3930f6d69/22/201311:50 AM5f3e168d-b8a3-44d8-be00-5792835bd9649/22/201311:17 AMe37d3336-31bc-4b0a-9465-52a4134122459/22/201310:43 AMbp-ad4f13ff-cd2e-4623-a069-eb51f21309229/22/201310:34 AMf0613221-6f80-4c9d-9fe4-ca876ef6f1179/22/201310:31 AMbp-d057aeb1-4cc7-48f9-95c4-8016221309219/21/20138:25 PM17af7e53-e6bf-493d-9485-156cca5802219/21/201310:39 AMa4daf867-4d30-4a0e-8004-3d9a9d484f7c9/21/201310:39 AM4e55c34b-0d0a-450b-9484-1d17614f387f9/21/201310:39 AM286b89d3-cd01-45db-bd8d-2598d657b7a49/21/201310:39 AM5d59fae7-a0fb-4263-a864-8fae8ec77ea79/21/201310:39 AM2e42817a-f8cf-4868-92bb-623f3bc11bb99/21/201310:39 AM31243a51-fea6-40b7-b445-255713562dc79/21/201310:39 AM408b9e08-5481-4b7e-bfad-0e76ca844bfd9/21/201310:39 AMd2723289-d818-4cd3-bb28-d868e1307c669/21/201310:39 AM6c443a74-7bdc-48cc-87e5-0033430d707c9/21/201310:39 AM4951d94c-4417-40f0-a96e-0e36b1b83d9f9/21/201310:39 AM3b308c82-7877-4c8e-90a7-1e0de4c2e5d69/21/201310:38 AM70c6a3e3-101e-45fe-bbf1-c30cc184879f9/21/201310:38 AMba68a4db-ae8b-4b99-b0cf-eb7bbbbbac269/21/201310:38 AMa6e43283-225b-48d1-8aa5-600921127f839/21/201310:38 AM66e53cdf-9f22-4c5e-8e00-61df0f8728949/21/201310:38 AM56fc3656-3a7e-4658-97a9-7ccfa8892adb9/21/201310:38 AM7351df51-79dc-43fa-9cda-ebf4fc1e491c9/21/201310:38 AM92c9581e-7723-4e05-b518-4e7b2973d8509/21/201310:36 AM3bca86fb-963a-4f40-8d15-fa57fc769c739/21/201310:36 AM458b47bf-34ba-4bdb-a53f-b06d2347937c9/21/201310:36 AMbf07e843-4775-4a08-9e8e-1a3f379a8d099/21/201310:36 AM895356c0-4ac3-4649-a16f-f65074f5e2269/21/201310:36 AM408cd2d4-7785-4c4b-b089-9c3fcaab2a2f9/21/201310:36 AM08e169ba-1bd4-49d8-8997-547beb358b289/21/201310:33 AM549f1a75-6d0b-481d-bbcb-3bde485aadcc9/21/201310:24 AM3f8beec3-97d7-40a0-b51c-b2848853c82c9/20/201311:24 PMbp-a5a99126-1f21-4318-bedd-de94c21309209/20/20135:57 PMbp-36676096-8198-4bee-9198-d8b7621309209/20/20135:52 PMbp-4ce80d10-a79b-47f1-9ddc-7623f21309209/20/20135:36 PMbp-027f8107-564f-4b89-8556-7bdd221309209/20/20133:48 PMbp-8d759bb2-01c1-4050-b34b-320ac21309209/20/20133:38 PMd6d56f92-338b-4971-9ded-cf2d2546e8999/20/20133:29 PM6c34bb0b-2f57-43f6-bcf7-7346c0283cf99/20/20133:19 PM215fb84b-34b8-4c43-98c2-f2a48c8273239/20/20133:09 PMa8a8a738-794d-4fa2-91a5-6932d8ed94089/20/20132:59 PMd6523ece-f436-4255-b345-0bf33b8250e39/20/20132:48 PMa4f4f17e-dd39-4d49-bd03-494a3a6578009/20/20132:38 PMcd4b9582-9fdb-427b-8804-7fc56623ccad9/20/20132:18 PM92dd589b-c594-4d16-9903-f91d568012339/20/20132:08 PM7c724086-6a29-4212-bc0f-9e97343b39629/20/20131:58 PMa88cd0b8-b507-4a6a-9d6c-55baee1d9b469/20/20131:51 PM35b3d645-c063-4fd0-96d3-8249333d82e89/20/20131:48 PMde1fa011-bfed-4724-bfa3-897a7f0c6ff59/20/20131:38 PM98e10b88-b8bd-45a3-b970-abfa68f4d69c9/20/20131:28 PMad203381-db21-4a86-b26c-1e475ecace559/20/20131:17 PM6cd49a74-884d-4cdd-aaad-870effb7e0e29/20/20131:07 PM1259368f-9ddb-4e27-8392-2b7a53819f909/20/201312:57 PM884068e8-b8c8-4bb0-84ff-a935922dbfca9/20/201312:47 PM77ef9bd5-aad0-4581-a418-386dfc27eb7f9/20/201312:37 PMa56d6862-d98a-4427-876f-50e18a41f1f39/20/20139:32 AM1cc86569-3309-47e3-9831-23ac90f551f89/18/201310:24 PM07f0e867-495a-4d98-9d10-d45504c4ca4b9/15/201310:53 PMdbf5f5b2-5d67-45cf-9a7e-5ef49bfa5b229/15/201310:53 PM92639b14-383d-4f05-9f39-b8712b00dc839/15/201310:53 PMe8d95bdc-6115-4c2d-a965-505dabb680669/15/201312:26 AM7ee80b0d-610d-4fbb-befa-fb2fa47235a09/12/20136:30 PMc83c8ef2-2e6c-4290-b01c-18cafae71ed29/12/20135:43 PMca4d09a9-c575-4542-a935-34f6aa6ae32c9/12/20134:41 PMa922eeb9-2625-420e-95b0-4fa2eeeedf0a9/12/20134:31 PMef0d8046-10fb-4381-a10b-7c18bac1ef0b9/12/20134:21 PMcf1f844c-b431-430f-bdfe-9659f0d9a8c39/12/20134:18 PM8db0997e-e801-4aa8-9936-e38b9698c9cd9/11/20133:35 PMff4d7551-14e1-46d7-b8a0-472d46a9b2899/11/20136:37 AMefafe9a0-d0ff-4fe8-b551-bfdb39bdd8699/10/20135:57 PM4df76913-cbca-42a7-b3cc-4e7b006ea1b79/10/20135:57 PM22ed99e6-eab9-4c10-aab7-21583479c7ff9/10/20135:57 PM38fa7731-91c2-4d7c-a885-2b4eebd8f9239/10/20135:57 PMb01cd318-aa87-40bd-a8a0-79049b96a9a09/10/20135:57 PM16a749c5-6774-4e87-810f-26d4eb36caae9/10/20135:57 PM859fe7ec-a4b4-49b2-a261-4ffd16e010109/10/20135:56 PMf3c4d7c2-47af-44df-ae53-52401f341d609/10/20135:56 PMd7fb6078-db16-469a-9600-4894ee75f9229/10/20135:56 PM599d8641-f2d8-4966-ab01-5066a6de17b29/10/20135:56 PMe87ffe07-8be0-4202-9b5a-f1f5d1f0faad9/10/20135:56 PMe124d76c-83b4-4e79-85ce-f96d7af1b3a79/10/20135:56 PM5f4b0e80-46ba-47e1-82fb-ae43dd8b4cc29/10/20134:11 PM53f45350-6849-4185-931c-cc8086e280a39/10/20134:11 PM985caa34-19c2-4bd5-a95f-c19ef45e3c729/10/20134:11 PM0a3d8337-b1dd-4628-907c-0550a575c5559/10/20134:11 PMd06da01b-56cb-4297-b6db-884cff5b52e19/10/20134:11 PMf623372b-e8f6-4db0-94a2-b52e832bcf239/10/20134:11 PM334c188a-24b3-452d-8be5-6bc44934846f9/7/20137:11 AM0cd7e4e2-9ef6-452a-b011-28a07ba62df89/7/20137:04 AM62632d0e-9cdb-4a7b-8d21-0b39fd32a2799/7/20137:04 AMd4ca27be-c3ac-449c-8316-968c95bca0489/7/20137:04 AM17db09db-f299-4e53-9019-2b1d0ac5e09c9/7/20137:04 AMafe1c1ea-9f94-40e1-98dd-e7e68d06b5659/7/20137:04 AMfebc5893-a502-4c86-b574-0745d9d2cb5e9/7/20137:04 AMbaf02119-cdea-4a61-ab69-6914c54166289/7/20137:02 AM1db9b64b-3de4-4714-a6d7-3d393e7591a29/7/20137:02 AMdefcd367-08a3-496e-be6e-b6319fee6b329/7/20137:02 AM10947d97-02dd-4863-8ceb-0c4211d5df559/7/20137:02 AM9bd7f069-d8a4-42a2-86dc-ca962e26c7159/7/20137:02 AM8dadd4fd-7c01-4aaa-

Thanks, Philip

ad31c09f-60f0-43ee-9024-e4bc9ed689cb9/23/20138:52 AM

Plus please see reports on other answer on thread - really appreciate your help.

bp-564d96c6-713a-4e7b-999d-a345d21309239/23/20138:49 AMf15d244e-0d5a-44aa-8449-de8eb35d152a9/23/20138:47 AMbp-790c099f-2a84-441a-b490-0bcc921309229/22/20137:17 PMbp-195ff1b4-b65b-4cd9-af5a-42e9d21309229/22/20135:38 PM

unfortunately those crash reports come back as empty, which means they don't contain information about what caused the crashes, so it's not possible to know what really causes the issue & give any specific solutions.

this is sometimes caused by crashes related to graphics drivers, so please try to disable hardware acceleration in firefox > options > advanced > general. another thing that you can try is to run a full scan of your system with different security tools like the free version of malwarebytes, adwcleaner, microsoft safety scanner & kaspersky security scan.

in case all of this doesn't help, maybe it can be helpful if you provide more information about the security software that is running on your pc and your firefox configuration, which is available when you go to firefox > help > troubleshooting information. there you can copy the contents of that page and paste them here into a reply on the forum. additionally the kind of security software that is running on your pc